Perl

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Test::Excel

Sunday, Jul 3, 2022 by Mohammad S Anwar Perl

My first contribution to CPAN was Test::Excel. It was initiated as we had requirement for such at work at that time. It has gone through many changes, thanks to all for reporting issues and providing patches.. It even got space as topic for Day 18 in Perl Advent Calendar 2018. It was a proud moment when a collegue of mine at work requested help with Test::Excel as it was not behaving as per her requirements.

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Perl Question ???

Saturday, Jul 2, 2022 by Mohammad S Anwar Perl

A few days ago, I received an email from someone who appears to be Perl hacker and asked me a question. First, I feel honoured that somebody thinks I am capable to answer this question. I didn’t want quick reply to the email. Instead, I decided to write a short blog post and share with other Perl hackers, just in case. I have seen both styles and I believe it is just a matter of personal choice and style.

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The Weekly Challenge - 1000 days

Friday, Jul 1, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. UPDATES 3. SPONSORS 4. PLAN 5. CHAMPIONS HEADLINES We all know, The Weekly Challenge a.k.a Perl Weekly Challenge started on 25th March 2019. I must confess I didn’t expect it to last this long. What worked in our favour is that we instantly found handful core supporters, who not only took part in the weekly challenge regularly but also started spreading the word.

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Ryan Thompson › Perl Weekly Review #164

Tuesday, Jun 28, 2022 by Ryan Thompson perl

Continues from previous week. Ryan Thompson with you this week. I’m back doing reviews temporarily to help Colin out, so expect to see both of us in the weeks to come! Welcome to the Perl review for Week 164 of the Weekly Challenge! For a quick overview, go through the original tasks and recap of the weekly challenge. Getting in Touch Email › Email me (Ryan) with any feedback about this review.

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Colin Crain › Perl Weekly Review #165

Monday, Jun 27, 2022 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review pages for Week 165 of The Weekly Challenge! Here we will take the time to discuss the submissions offered up by the team, factor out some common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. ●︎ Why do we do these challenges? I suppose any reasonable answer to that question would be from a field as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 170

Monday, Jun 27, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 171

Monday, Jun 27, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Abundant Number 10. TASK #2: First-class Function HEADLINES Welcome to Week #171 of the weekly challenge. Let us all welcome another experienced Perl hacker from France, Philippe Bricout. You should definitely checkout his Perl solution. Welcome back, Mark Senn and thanks for your contribution in Raku.

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Colin Crain › Perl Weekly Review #163

Monday, Jun 20, 2022 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review pages for Week 163 of The Weekly Challenge! Here we will take the time to discuss the submissions offered up by the team, factor out some common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. ●︎ Why do we do these challenges? I suppose any reasonable answer to that question would be from a field as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 169

Monday, Jun 20, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 170

Monday, Jun 20, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Primorial Numbers 10. TASK #2: Kronecker Product HEADLINES Welcome to a yet another fun Week #170. We have new member Dario Mazzeo, an experienced Perl hacker, joining the Team PWC. Congratulation everyone for reaching the target of 100+ contributions once again. Even the guest contributions is becoming popular among the team members.

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Decode Hexdump

Saturday, Jun 18, 2022 by Mohammad S Anwar Perl

Those who know me personally, are aware that my background is Mathematical as I did Degree in Mathematics Honours in the year 1993-95. During my early days with COBOL and Pascal, I never dealt with Unicode or played with bytes. Even when I moved to C, I was still no where near it. Those with Degree in Computer Science always stay ahead in the understandings of these low level key aspects of programming.

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Colin Crain › Perl Weekly Review #162

Monday, Jun 13, 2022 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review pages for Week 162 of The Weekly Challenge! Here we will take the time to discuss the submissions offered up by the team, factor out some common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. ●︎ Why do we do these challenges? I suppose any reasonable answer to that question would be from a field as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 168

Monday, Jun 13, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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Strawberry Perl

Monday, Jun 13, 2022 by Mohammad S Anwar Perl

Last week I wrote blog post Do you want to get started with Perl v5.36? where I shared my experience with the latest release Perl v5.36. I received this email today. The reality is, I never use Perl on Windows. And second never bothered creating .exe from the source file. I decided to give it a go, so first thing we need to download Strawberry Perl. T had the choice to download strawberry-perl-5.

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The Weekly Challenge - 169

Monday, Jun 13, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Brilliant Numbers 10. TASK #2: Achilles Numbers HEADLINES Welcome to a very special Week #169. Why so special? Well, we got two new members joining the Team PWC, Stephen G Lynn and habere-et-dispertire. There is another reason why it is so special. Thanks to the kind help by Lance Wicks, we finally have the design ready for the 1000 days celebration T-shirt.

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Get started with Perl v5.36

Saturday, Jun 11, 2022 by Mohammad S Anwar Perl

Do you want to get started with Perl v5.36? Honestly speaking I never bothered about any of the Perl releases before. But Perl v5.36 is very special and close to me. Why? Recently I have been sharing new features introduced in Perl dating back to v5.10, inspired by the book Perl new features v5.10 to v5.34 by brain d foy. I received a FREE copy of the book, a big thank you to brian d foy.

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Taint in Perl

Thursday, Jun 9, 2022 by Mohammad S Anwar Perl

The "taint" always bothered me. I thought I knew it well but no. The obvious question, can I show a working example? Before I do that, let me share an incident with you. In the year 2019, I attended The Perl Conference in Riga. During the 3 days event, I gave couple of talks and one of them was "Protect your Perl script from common security issues". You can checkout my event report, if you are interested.

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Memory Leak in Perl

Wednesday, Jun 8, 2022 by Mohammad S Anwar Perl

I always find the topic Memory Management very fascinating. Perl being the Perl, there is nothing you need to worry about. All memory management is done for us for FREE. Still, there was something, I always wanted to find out about memory management in Perl. All along, I knew that there is an easy way I can force my script to leak memory. How? Just create a data structure with circular reference.

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RECAP - The Weekly Challenge - 167

Monday, Jun 6, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 168

Monday, Jun 6, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Perrin Prime 10. TASK #2: Home Prime HEADLINES Welcome to the Week #168. Let us all welcome guest Michael DiCicco from Little Rock, AR sharing his first contributions in Java and Python. What a coincidence, we have two members sharing the same surname DiCicco and he is none other than our very own champion Robert DiCicco.

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Colin Crain › Perl Weekly Review #161

Monday, May 30, 2022 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review pages for Week 161 of The Weekly Challenge! Here we will take the time to discuss the submissions offered up by the team, factor out some common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. ●︎ Why do we do these challenges? I suppose any reasonable answer to that question would be from a field as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 166

Monday, May 30, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 167

Monday, May 30, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Circular Prime 10. TASK #2: Gamma Function HEADLINES Welcome to the Week #167 and I got the opportunity to propose the challenge. For me the main attraction was the blog post by Julien Fiegehenn for the first time. Colin Crain seems to be busy as we didn’t get the blog post 2 weeks in a row.

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RECAP - The Weekly Challenge - 165

Monday, May 23, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 166

Monday, May 23, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Hexadecimal Words 10. TASK #2: K-Directory Diff HEADLINES Welcome to yet another fun Week #166, thanks to the exciting tasks by Ryan Thompson. Lets us welcome new member, Roman Kotelnikov with his guest contributions in J. Talking about guest contributions, this week we had contributions in TypeScript by Julien Fiegehenn.

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Colin Crain › Perl Weekly Review #160

Tuesday, May 17, 2022 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review pages for Week 160 of The Weekly Challenge! Here we will take the time to discuss the submissions offered up by the team, factor out some common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. ●︎ Why do we do these challenges? I suppose any reasonable answer to that question would be from a field as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 164

Monday, May 16, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 165

Monday, May 16, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Scalable Vector Graphics (SVG) 10. TASK #2: Line of Best Fit HEADLINES Welcome to the Week #165. Let us all welcome 2 new members, James Marquis and Humberto Massa to the Team PWC. We had the pleasure to interview latest champion, Matthew Neleigh. It was great knowing him.

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Meet The Champion: April 2022

Sunday, May 15, 2022 by Mohammad S Anwar Perl

Get to know about Matthew Neleigh. Welcome to the monthly series Meet The Champion. Last month we spoke to Eric Cheung, the winner of March 2022. Today we are talking to Matthew Neleigh, the winner of April 2022 of The Weekly Challenge. I hope you are going to enjoy the interview. Mohammad: Tell us about your technical background? Matthew: I’ve programmed in BASIC, Pascal, Java, C, Perl, and the Bourne shell, targeting everything from 8-bit microcontrollers to UNIX minicomputers.

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Colin Crain › Perl Weekly Review #159

Monday, May 9, 2022 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review pages for Week 159 of The Weekly Challenge! Here we will take the time to discuss the submissions offered up by the team, factor out some common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. ●︎ Why do we do these challenges? I suppose any reasonable answer to that question would be from a field as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 163

Monday, May 9, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 164

Monday, May 9, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Prime Palindrome 10. TASK #2: Happy Numbers HEADLINES Welcome to the Week #164 with new member Luiz Felipe from Brazil. Thank you, Luiz for your first contributions in Perl. Thank you, Ryan Thompson for the contributions in Perl and Raku. I should also thank, Julien Fiegehenn for the contributions in Perl.

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Colin Crain › Perl Weekly Review #158

Monday, May 2, 2022 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review pages for Week 158 of The Weekly Challenge! Here we will take the time to discuss the submissions offered up by the team, factor out some common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. ●︎ Why do we do these challenges? I suppose any reasonable answer to that question would be from a field as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 162

Monday, May 2, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 163

Monday, May 2, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Sum Bitwise Operator 10. TASK #2: Summations HEADLINES We are celebrating Idd today in England. Happy Idd to all the members of Team PWC. Today is also the first Monday of the month, Time to declare the next champion. With great pleasure, we declare Matthew Neleigh as our next champion.

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RECAP - The Weekly Challenge - 161

Monday, Apr 25, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 162

Monday, Apr 25, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: ISBN-13 10. TASK #2: Wheatstone-Playfair HEADLINES Time flies by so fast, it is unbelievable, we are now in the Week #162. Let us all welcome new member, Rick Bychowski, from California and thank you for your first contributions in Raku. We also had, Ryan Thompson, back in action.

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Colin Crain › Perl Weekly Review #157

Sunday, Apr 24, 2022 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review pages for Week 157 of The Weekly Challenge! Here we will take the time to discuss the submissions offered up by the team, factor out some common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. ●︎ Why do we do these challenges? I suppose any reasonable answer to that question would be from a field as wide ranging and varied as the people who choose to join the team.

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Colin Crain › Perl Weekly Review #156

Monday, Apr 18, 2022 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review pages for Week 156 of The Weekly Challenge! Here we will take the time to discuss the submissions offered up by the team, factor out some common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. ●︎ Why do we do these challenges? I suppose any reasonable answer to that question would be from a field as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 160

Monday, Apr 18, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 161

Monday, Apr 18, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Abecedarian Words 10. TASK #2: Pangrams HEADLINES Welcome to yet another fun weekly challenge. We had the pleasure to interview our latest champion, Eric Cheung. There was another surprise, pleasant one, we had last week. Our ex-Perl Reviewer, Ryan J Thompson, got in touch with us.

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Colin Crain › Perl Weekly Review #155

Monday, Apr 11, 2022 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review pages for Week 155 of The Weekly Challenge! Here we will take the time to discuss the submissions offered up by the team, factor out some common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. ●︎ Why do we do these challenges? I suppose any reasonable answer to that question would be from a field as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 159

Monday, Apr 11, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 160

Monday, Apr 11, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Four Is Magic 10. TASK #2: Equilibrium Index HEADLINES Welcome to yet another fun week, thanks to all the dedicated members of Team PWC. I would like to mention one name, Laurent Rosenfeld, one of the few who stayed with us from day one.

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RECAP - The Weekly Challenge - 158

Monday, Apr 4, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 159

Monday, Apr 4, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Farey Sequence 10. TASK #2: Moebius Number HEADLINES Welcome to the first weekly challenge of the holy month of Ramadan. Also today is the first Monday of the month and time to announce the next champion. With great pleasure I announce, Eric Cheung, as the Champion of the month.

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Colin Crain › Perl Weekly Review #154

Sunday, Apr 3, 2022 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review pages for Week 154 of The Weekly Challenge! Here we will take the time to discuss the submissions offered up by the team, factor out some common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. ●︎ Why do we do these challenges? I suppose any reasonable answer to that question would be from a field as wide ranging and varied as the people who choose to join the team.

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Colin Crain › Perl Weekly Review #153

Monday, Mar 28, 2022 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review pages for Week 153 of The Weekly Challenge! Here we will take the time to discuss the submissions offered up by the team, factor out some common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. ●︎ Why do we do these challenges? I suppose any reasonable answer to that question would be from a field as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 157

Monday, Mar 28, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 158

Monday, Mar 28, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Additive Primes 10. TASK #2: First Series Cuban Primes HEADLINES Welcome to the Week #158. With this we are now 3 years old. Technically speaking, the third anniversary was on 25th March 2022. Welcome back, Paulo Custodio after the break. Thanks for sharing contributions for Week #146, Week #147, Week #148, Week #149, Week #150, Week #151, Week #152, Week #153, Week #154, Week #155, Week #156 and Week #157.

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Colin Crain › Perl Weekly Review #152

Monday, Mar 21, 2022 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review pages for Week 152 of The Weekly Challenge! Here we will take the time to discuss the submissions offered up by the team, factor out some common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. ●︎ Why do we do these challenges? I suppose any reasonable answer to that question would be from a field as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 156

Monday, Mar 21, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 157

Monday, Mar 21, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Pythagorean Means 10. TASK #2: Brazilian Number HEADLINES Welcome Kueppo Wesley to the Team PWC. Thank you for the impressive introduction as below. My name is KUEPPO Wesley and I live in Africa/Cameroon/Yaounde, I'm 20 yrs/old, the first born out of 7. I'm a student at the University of Yaounde I, level 3, preparing for my Bachelor's degree in Computer Science.

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Colin Crain › Perl Weekly Review #151

Wednesday, Mar 16, 2022 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review pages for Week 151 of The Weekly Challenge! Here we will take the time to discuss the submissions offered up by the team, factor out some common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. ●︎ Why do we do these challenges? I suppose any reasonable answer to that question would be from a field as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 155

Monday, Mar 14, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 156

Monday, Mar 14, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Pernicious Numbers 10. TASK #2: Weird Number HEADLINES Welcome Daniel Pfeiffer to the Team PWC. We are now strong team of 252 members. The interview with our latest champion, Robert DiCicco, is live now. It was great knowing him. Robert is so lucky to be able to spend time coding even after retirement.

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Meet The Champion: February 2022

Thursday, Mar 10, 2022 by Mohammad S Anwar Perl, Raku

Get to know about Robert DiCicco. Welcome to the monthly series Meet The Champion. Last month we spoke to Alexander Pankoff, the winner of January 2022. Today we are talking to Robert DiCicco, the winner of February 2022 of The Weekly Challenge. I hope you are going to enjoy the interview. Mohammad: Tell us about your technical background? Robert: I started back in the dark ages, 1986. I took a job as a System Administrator at a publishing company.

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RECAP - The Weekly Challenge - 154

Monday, Mar 7, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 155

Monday, Mar 7, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Fortunate Numbers 10. TASK #2: Pisano Period HEADLINES Welcome to the Week #155. It is hard to believe the number. At times I feel like taking short break from the routine that I have been following for the last 3 years (almost). But then when I read the positive comments week after week by the dedicated members, I drop the idea completely.

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Colin Crain › Perl Weekly Review #150

Sunday, Mar 6, 2022 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review pages for Week 150 of The Weekly Challenge! Here we will take the time to discuss the submissions offered up by the team, factor out some common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. ●︎ Why do we do these challenges? I suppose any reasonable answer to that question would be from a field as wide ranging and varied as the people who choose to join the team.

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Colin Crain › Perl Weekly Review #149

Monday, Feb 28, 2022 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review pages for Week 149 of The Weekly Challenge! Here we will take the time to discuss the submissions offered up by the team, factor out some common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. ●︎ Why do we do these challenges? I suppose any reasonable answer to that question would be from a field as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 153

Monday, Feb 28, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 154

Monday, Feb 28, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Missing Permutation 10. TASK #2: Padovan Prime HEADLINES Welcome to yet another week full of factorials left right center. The magic of factorials did the trick. For the first time in the history of weekly challenge, we have received more guest contributions than the regular contributions.

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Colin Crain › Perl Weekly Review #148

Monday, Feb 21, 2022 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review pages for Week 148 of The Weekly Challenge! Here we will take the time to discuss the submissions offered up by the team, factor out some common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. ●︎ Why do we do these challenges? I suppose any reasonable answer to that question would be from a field as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 152

Monday, Feb 21, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 153

Monday, Feb 21, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Left Factorials 10. TASK #2: Factorions HEADLINES Welcome PokGoPun to the Team PWC. We now have 250 members in the team. Last week, we had the opportunity to interview the latest champion, Alexander Pankoff. It was pleasure knowing him. Please do checkout to find out more about him.

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Meet The Champion: January 2022

Thursday, Feb 17, 2022 by Mohammad S Anwar Perl

Get to know about Alexander Pankoff. Welcome to the monthly series Meet The Champion. Last month we spoke to Peter Campbell Smith, the winner of December 2021. Today we are talking to Alexander Pankoff, the winner of January 2022 of The Weekly Challenge. I hope you are going to enjoy the interview. Mohammad: Tell us about your technical background? Alexander: I got interested in computers early in my childhood.

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Colin Crain › Perl Weekly Review #147

Monday, Feb 14, 2022 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review pages for Week 147 of The Weekly Challenge! Here we will take the time to discuss the submissions offered up by the team, factor out some common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. ●︎ Why do we do these challenges? I suppose any reasonable answer to that question would be from a field as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 151

Monday, Feb 14, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 152

Monday, Feb 14, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Triangle Sum Path 10. TASK #2: Rectangle Area HEADLINES Welcome to Week #152, a rather quiet one, where we received 68 regular contributions and 45 guest contributions. It didn’t trouble me much, which is good in a way. Hopefully it would bounce back this week.

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RECAP - The Weekly Challenge - 150

Monday, Feb 7, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 151

Monday, Feb 7, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Binary Tree Depth 10. TASK #2: Rob The House HEADLINES Today is the first Monday of the month and it is time to announce the next champion, Alexander Pankoff, currently ranked #49 with 62 contributions in Perl. Last week, for the first time, he shared two blogs, #1 and #2.

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Colin Crain › Perl Weekly Review #146

Sunday, Feb 6, 2022 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review pages for Week 146 of The Weekly Challenge! Here we will take the time to discuss the submissions offered up by the team, factor out some common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. ●︎ Why do we do these challenges? I suppose any reasonable answer to that question would be from a field as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 149

Monday, Jan 31, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 150

Monday, Jan 31, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Fibonacci Words 10. TASK #2: Square-free Integer HEADLINES Welcome to the Week #150, we reached another milestone, thanks to the support and dedication of Team PWC. I would like to mention one of the highlights of the weekly challenge is the quality blogs shared by the team members.

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Colin Crain › Perl Weekly Review #145

Sunday, Jan 30, 2022 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review pages for Week 145 of The Weekly Challenge! Here we will take the time to discuss the submissions offered up by the team, factor out some common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any reasonable answers to that question would be as wide ranging and varied as the people who choose to join the team.

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Colin Crain › Perl Weekly Review #144

Monday, Jan 24, 2022 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review pages for Week 144 of The Weekly Challenge! Here we will take the time to discuss the submissions offered up by the team, factor out some common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any reasonable answers to that question would be as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 148

Monday, Jan 24, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 149

Monday, Jan 24, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Fibonacci Digit Sum 10. TASK #2: Largest Square HEADLINES Welcome to the Week #149 with a good news that Pete Sergeant has promised to sponsor the monthly prize for another 12 months. I would like to take this opportunity to thank, Pete, for the support and encouragement.

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Colin Crain › Perl Weekly Review #143

Monday, Jan 17, 2022 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review pages for Week 143 of The Weekly Challenge! Here we will take the time to discuss the submissions offered up by the team, factor out some common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any reasonable answers to that question would be as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 147

Monday, Jan 17, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 148

Monday, Jan 17, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Eban Numbers 10. TASK #2: Cardano Triplets HEADLINES Welcome to the Week #148 with a new member Marton Polgar. Marton shared solutions in Raku in the very first week. I get excited everytime, I come across blog post by fellow team members. Last week, Roger Bell_West shared very inspiring blog post.

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Colin Crain › Perl Weekly Review #142

Monday, Jan 10, 2022 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review pages for Week 142 of The Weekly Challenge! Here we will take the time to discuss the submissions offered up by the team, factor out some common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any reasonable answers to that question would be as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 146

Monday, Jan 10, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 147

Monday, Jan 10, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Truncatable Prime 10. TASK #2: Pentagon Numbers HEADLINES Welcome to the Week #147 with the interview with the champion, Peter Campbell Smith. Do you know about Early Bird Club? Well, it is a private club whose members get the first glimpse of the upcoming challenges before the general public.

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Meet The Champion: December 2021

Tuesday, Jan 4, 2022 by Mohammad S Anwar Perl

Get to know about Peter Campbell Smith. Welcome to the monthly series Meet The Champion. Last month we spoke to W. Luis Mochan, the winner of November 2021. Today we are talking to Peter Campbell Smith, the winner of December 2021 of The Weekly Challenge. I hope you are going to enjoy the interview. Mohammad: How/When did you start using Perl? Peter: I was the technical lead on a project to re-engineer the software that keep the San Francisco BART metro system running on time.

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RECAP - The Weekly Challenge - 145

Monday, Jan 3, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 146

Monday, Jan 3, 2022 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: 10001st Prime Number 10. TASK #2: Curious Fraction Tree HEADLINES Happy New Year Let us welcome new year 2022 with the happy note as we declare the next champion. As per the tradition, we announce the champion on the first Monday of the month.

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Colin Crain › Perl Weekly Review #141

Sunday, Jan 2, 2022 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review pages for Week 141 of The Weekly Challenge! Here we will take the time to discuss the submissions offered up by the team, factor out some common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any reasonable answers to that question would be as wide ranging and varied as the people who choose to join the team.

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Colin Crain › Perl Weekly Review #140

Tuesday, Dec 28, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review pages for Week 140 of The Weekly Challenge! Here we will take the time to discuss the submissions offered up by the team, factor out some common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any reasonable answers to that question would be as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 144

Monday, Dec 27, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 145

Monday, Dec 27, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Dot Product 10. TASK #2: Palindromic Tree HEADLINES Merry Christmas to all the members of Team PWC. I wish you all the happiness in the world. Last week for me was for the family. I spent quality time with kids. I have another week off left.

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Advent Calendar - December 24, 2021

Friday, Dec 24, 2021 by Mohammad S Anwar Perl

Advent Calendar 2021 | Day 23 | Day 24 | Let’s conclude the event with the final present from me to all Perl fans. This video is picked from my YouTube Channel. Task #1: Swap Odd/Even bits You are given a positive integer $N less than or equal to 255. Write a script to swap the odd positioned bit with even positioned bit and print the decimal equivalent of the new binary representation.

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Advent Calendar 2021

Friday, Dec 24, 2021 by Mohammad S Anwar Perl, Raku

| 2019 | 2020 | We are back, third time in a row with Advent Calendar. I promise to present interesting topic every day contributed by esteemed members of Team PWC. MON TUE WED THU FRI SAT SUN

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Advent Calendar - December 23, 2021

Thursday, Dec 23, 2021 by Ryan Thompson Perl, Raku

Advent Calendar 2021 | Day 22 | Day 23 | Day 24 | The gift is presented by Ryan Thompson. Today he is talking about his solution to “The Weekly Challenge - 110”. This is re-produced for Advent Calendar 2021 from the original post by Ryan Thompson. Task #2: Transpose CSV File You are given a text file. Write a script to transpose the contents of the given file.

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Advent Calendar - December 22, 2021

Wednesday, Dec 22, 2021 by Javier Luque Perl, Raku

Advent Calendar 2021 | Day 21 | Day 22 | Day 23 | The gift is presented by Javier Luque. Today he is talking about his solution to “The Weekly Challenge - 076”. This is re-produced for Advent Calendar 2021 from the original post by Javier Luque. Task #2: Word Search Write a script that takes two file names. The first file would contain word search grid as shown below.

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Advent Calendar - December 21, 2021

Tuesday, Dec 21, 2021 by E. Choroba Perl

Advent Calendar 2021 | Day 20 | Day 21 | Day 22 | The gift is presented by E. Choroba. Today he is talking about his solution to “The Weekly Challenge - 061”. This is re-produced for Advent Calendar 2021 from the original post by E. Choroba. Task #1: Product SubArray Given a list of 4 or more numbers, write a script to find the contiguous sublist that has the maximum product.

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Advent Calendar - December 20, 2021

Monday, Dec 20, 2021 by Steven Wilson Perl

Advent Calendar 2021 | Day 19 | Day 20 | Day 21 | The gift is presented by Steven Wilson. Today he is talking about his solution to “The Weekly Challenge - 138”. This is re-produced for Advent Calendar 2021 from the original post by Steven Wilson. Task #1: Workdays You are given a year, $year in 4-digits form. Write a script to calculate the total number of workdays in the given year.

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Colin Crain › Perl Weekly Review #138

Monday, Dec 20, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review pages for Week 138 of The Weekly Challenge! Here we will take the time to discuss the submissions offered up by the team, factor out some common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any reasonable answers to that question would be as wide ranging and varied as the people who choose to join the team.

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Colin Crain › Perl Weekly Review #139

Monday, Dec 20, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review pages for Week 139 of The Weekly Challenge! Here we will take the time to discuss the submissions offered up by the team, factor out some common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any reasonable answers to that question would be as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 143

Monday, Dec 20, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 144

Monday, Dec 20, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Semiprime 10. TASK #2: Ulam Sequence HEADLINES Apology for the delay in the release of the weekly challenge. I would like to start the week with a good news, the fund for the 1000 days T-shirt campaign is now £1029.74, thanks to all sponsors, specially last minute surprise sponsor, Pete Sergeant.

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Advent Calendar - December 19, 2021

Sunday, Dec 19, 2021 by Jorg Sommrey Perl

Advent Calendar 2021 | Day 18 | Day 19 | Day 20 | The gift is presented by Jorg Sommrey. Today he is talking about his solution to “The Weekly Challenge - 085”. This is re-produced for Advent Calendar 2021 from the original post by Jorg Sommrey. Task #1: Triplet Sum You are given an array of real numbers greater than zero. Write a script to find if there exists a triplet (a,b,c) such that 1 < a+b+c < 2.

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Advent Calendar - December 17, 2021

Friday, Dec 17, 2021 by Walt Mankowski Perl

Advent Calendar 2021 | Day 16 | Day 17 | Day 18 | The gift is presented by Walt Mankowski. Today he is talking about his solution to “The Weekly Challenge - 089”. This is re-produced for Advent Calendar 2021 from the original post by Walt Mankoswki. Task #2: Magical Matrix Write a script to display matrix as below with numbers 1 - 9. Please make sure numbers are used once.

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Advent Calendar - December 16, 2021

Thursday, Dec 16, 2021 by Jaldhar H. Vyas Perl, Raku

Advent Calendar 2021 | Day 15 | Day 16 | Day 17 | The gift is presented by Jaldhar H. Vyas. Today he is talking about his solution to “The Weekly Challenge - 108”. This is re-produced for Advent Calendar 2021 from the original post by Jaldhar H. Vyas. Task #2: Bell Numbers Write a script to display top 10 Bell Numbers. Please refer to wikipedia page for more information.

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Advent Calendar - December 15, 2021

Wednesday, Dec 15, 2021 by Lubos Kolouch Perl, Python

Advent Calendar 2021 | Day 14 | Day 15 | Day 16 | The gift is presented by Lubos Kolouch. Today he is talking about his solution to “The Weekly Challenge - 088”. This is re-produced for Advent Calendar 2021 from the original post by Lubos Kolouch. Task #2: Spiral Matrix You are given m x n matrix of positive integers. Write a script to print spiral matrix as list.

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Advent Calendar - December 13, 2021

Monday, Dec 13, 2021 by W. Luis Mochan Perl

Advent Calendar 2021 | Day 12 | Day 13 | Day 14 | The gift is presented by W. Luis Mochan. Today he is talking about his solution to “The Weekly Challenge - 125”. This is re-produced for Advent Calendar 2021 from the original post by W. Luis Mochan. Task #1: Pythagorean Triples You are given a positive integer $N. Write a script to print all Pythagorean Triples containing $N as a member.

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RECAP - The Weekly Challenge - 142

Monday, Dec 13, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 143

Monday, Dec 13, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Calculator 10. TASK #2: Stealthy Number HEADLINES First thing first, let us Meet The Champion - W. Luis Mochan. I am sure, you all wanted to know about the 1000 days T-shirt campaign. I have had few more responses from the champions. There are still quite a lot members who have not replied to my email.

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Advent Calendar - December 12, 2021

Sunday, Dec 12, 2021 by Cheok-Yin Fung Perl

Advent Calendar 2021 | Day 11 | Day 12 | Day 13 | The gift is presented by Cheok-Yin Fung. Today he is talking about his solution to “The Weekly Challenge - 123”. This is re-produced for Advent Calendar 2021 from the original post by Cheok-Yin Fung. Task #2: Square Points You are given coordinates of four points i.e. (x1, y1), (x2, y2), (x3, y3) and (x4, y4).

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Advent Calendar - December 11, 2021

Saturday, Dec 11, 2021 by Adam Russell Perl

Advent Calendar 2021 | Day 10 | Day 11 | Day 12 | The gift is presented by Adam Russell. Today he is talking about his solution to “The Weekly Challenge - 122”. This is re-produced for Advent Calendar 2021 from the original post by Adam Russell. Task #1: Average of Stream You are given a stream of numbers, @N. Write a script to print the average of the stream at every point.

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Advent Calendar - December 9, 2021

Thursday, Dec 9, 2021 by Laurent Rosenfeld Perl, Raku

Advent Calendar 2021 | Day 8 | Day 9 | Day 10 | The gift is presented by Laurent Rosenfeld. Today he is talking about his solution to “The Weekly Challenge - 114”. This is re-produced for Advent Calendar 2021 from the original post by Laurent Rosenfeld. Task #1: Next Palindrome Number You are given a positive integer $N. Write a script to find out the next Palindrome Number higher than the given integer $N.

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Advent Calendar - December 8, 2021

Wednesday, Dec 8, 2021 by Colin Crain Perl

Advent Calendar 2021 | Day 7 | Day 8 | Day 9 | The gift is presented by Colin Crain. Today he is talking about his solution to “The Weekly Challenge - 112”. This is re-produced for Advent Calendar 2021 from the original post by Colin Crain. Task #1: Canonical Path You are given a string path, starting with a slash ‘/'. Write a script to convert the given absolute path to the simplified canonical path.

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Meet The Champion: November 2021

Wednesday, Dec 8, 2021 by Mohammad S Anwar Perl

Get to know about W. Luis Mochan Welcome to the monthly series Meet The Champion. Last month we spoke to Paulo Custodio, the winner of October 2021. Today we are talking to W. Luis Mochan, the winner of November 2021 of The Weekly Challenge. I hope you are going to enjoy the interview. Mohammad: Tell us about your technical background? Luis: I’m a Physicist, working at UNAM, the National University of México where I do theoretical research on the linear and non-linear optical properties of materials, surfaces, disordered systems, metamaterials and photonic crystals.

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Advent Calendar - December 7, 2021

Tuesday, Dec 7, 2021 by James Smith Perl

Advent Calendar 2021 | Day 6 | Day 7 | Day 8 | The gift is presented by James Smith. Today he is talking about his solution to “The Weekly Challenge - 107”. This is re-produced for Advent Calendar 2021 from the original post by James Smith. Task #1: Self-descriptive Numbers Write a script to display the first three self-descriptive numbers. As per wikipedia, the definition of Self-descriptive Number is

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Colin Crain › Perl Weekly Review #137

Monday, Dec 6, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review pages for Week 137 of The Weekly Challenge! Here we will take the time to discuss the submissions offered up by the team, factor out some common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any reasonable answers to that question would be as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 141

Monday, Dec 6, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 142

Monday, Dec 6, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Divisor Last Digit 10. TASK #2: Sleep Sort HEADLINES Today is the first Monday of the month. You guessed it right, time to declare the Champion of The Weekly Challenge. With great pride, I declare W. Luis Mochan as our next Champion. Luis joined the Team PWC in the Week 88.

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Advent Calendar - December 5, 2021

Sunday, Dec 5, 2021 by Simon Green Perl

Advent Calendar 2021 | Day 4 | Day 5 | Day 6 | The gift is presented by Simon Green. Today he is talking about his solution to “The Weekly Challenge - 101”. This is re-produced for Advent Calendar 2021 from the original post by Simon Green. Task #1: Pack a Spiral You are given an array @A of items (integers say, but they can be anything). Your task is to pack that array into an MxN matrix spirally counterclockwise, as tightly as possible.

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Advent Calendar - December 4, 2021

Saturday, Dec 4, 2021 by Flavio Poletti Perl

Advent Calendar 2021 | Day 3 | Day 4 | Day 5 | The gift is presented by Flavio Poletti. Today he is talking about his solution to “The Weekly Challenge - 100”. This is re-produced for Advent Calendar 2021 from the original post by Flavio Poletti. Task #2: Triangle Sum You are given triangle array. Write a script to find the minimum path sum from top to bottom.

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Advent Calendar - December 3, 2021

Friday, Dec 3, 2021 by Arne Sommer Perl, Raku

Advent Calendar 2021 | Day 2 | Day 3 | Day 4 | The gift is presented by Arne Sommer. Today he is talking about his solution to “The Weekly Challenge - 097”. This is re-produced for Advent Calendar 2021 from the original post by Arne Sommer. Task #1: Caesar Cipher You are given string $S containing alphabets A..Z only and a number $N. Write a script to encrypt the given string $S using Caesar Cipher with left shift of size $N.

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Advent Calendar - December 2, 2021

Thursday, Dec 2, 2021 by Dave Jacoby Perl

Advent Calendar 2021 | Day 1 | Day 2 | Day 3 | The gift is presented by Dave Jacoby. Today he is talking about his solution to “The Weekly Challenge - 096”. This is re-produced for Advent Calendar 2021 from the original post by Dave Jacoby. Task #2: Edit Distance Write a script to find out the minimum operations required to convert $S1 into $S2. The operations can be insert, remove or replace a character.

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Advent Calendar - December 1, 2021

Wednesday, Dec 1, 2021 by Abigail Perl

Advent Calendar 2021 | Day 1 | Day 2 | The gift is presented by Abigail. Today he is talking about his solution to “The Weekly Challenge - 095”. This is re-produced for Advent Calendar 2021 from the original post by Abigail. Task #1: Palindrome Number You are given a number $N. Write a script to figure out if the given number is a palindrome. Print 1 if true otherwise 0.

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Colin Crain › Perl Weekly Review #136

Monday, Nov 29, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review pages for Week 136 of The Weekly Challenge! Here we will take the time to discuss the submissions offered up by the team, factor out some common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any reasonable answers to that question would be as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 140

Monday, Nov 29, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 141

Monday, Nov 29, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Number Divisors 10. TASK #2: Like Numbers HEADLINES We are getting closer to the 1000 days of The Weekly Challenge. I would like to thank each and every sponsor of the FREE T-shirt campaign. Please do check out the blog post for up to date information about the campaign.

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Colin Crain › Perl Weekly Review #135

Tuesday, Nov 23, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review pages for Week 135 of The Weekly Challenge! Here we will take the time to discuss the submissions offered up by the team, factor out some common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any reasonable answers to that question would be as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 139

Monday, Nov 22, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 140

Monday, Nov 22, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Add Binary 10. TASK #2: Multiplication Table HEADLINES Last week, I spoke about celebrating 1000 days of The Weekly Challenge by giving away FREE T-shirt to all the champions of the weekly challenge. I am overwhelmed by the support to the campaign. I have created blog post with all the details.

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RECAP - The Weekly Challenge - 138

Monday, Nov 15, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 139

Monday, Nov 15, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: JortSort 10. TASK #2: Long Primes HEADLINES Before I forget, please let me share the interview with last month champion, Paulo Custodio. It is always great pleasure to know about weekly champion. As you all know, the season of Advent Calendar is coming soon.

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Colin Crain › Perl Weekly Review #134

Monday, Nov 8, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review pages for Week 134 of The Weekly Challenge! Here we will take the time to discuss the submissions offered up by the team, factor out some common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any reasonable answers to that question would be as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 137

Monday, Nov 8, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 138

Monday, Nov 8, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Workdays 10. TASK #2: Split Number HEADLINES Today, we are 960 days old, very close to the target of 4-digits number. Congratulations to Team PWC for the support and encouragements. I am happy to see the growing popularity of guest contributions. I am glad to contribute as well although my contribution is not significant, still it feels nice.

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Meet The Champion: October 2021

Sunday, Nov 7, 2021 by Mohammad S Anwar Perl

Get to know about Paulo Custodio Welcome to the monthly series Meet The Champion. Last month we declared Jan Krnavek, the winner of September 2021. Today we are talking to Paulo Custodio, the winner of October 2021 of The Weekly Challenge. I hope you are going to enjoy the interview. Mohammad: Tell us about your technical background? Paulo: I started with computers as a teenager with a Timex Sinclair 1000 (a ZX-81 clone) at home and a Commodore PET 8032 at school.

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RECAP - The Weekly Challenge - 136

Monday, Nov 1, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 137

Monday, Nov 1, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Long Year 10. TASK #2: Lychrel Number HEADLINES Let us welcome November with a bang !!! Today is the first Monday of the month and it is the time to declare the champion of the weekly challenge. Paulo Custodio With great pleasure, I announce, Paulo Custodio as the champion.

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Colin Crain › Perl Weekly Review #133

Sunday, Oct 31, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review pages for Week 133 of The Weekly Challenge! Here we will take the time to discuss the submissions offered up by the team, factor out some common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any reasonable answers to that question would be as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 135

Monday, Oct 25, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 136

Monday, Oct 25, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Two Friendly 10. TASK #2: Fibonacci Sequence HEADLINES What a week it was !!! The Week #135 was special in many ways, please let me share the secrets. We breached the 100+ target once again, thanks to each and every members of Team PWC.

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Colin Crain › Perl Weekly Review #132

Sunday, Oct 24, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review pages for Week 132 of The Weekly Challenge! Here we will take the time to discuss the submissions offered up by the team, factor out some common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any reasonable answers to that question would be as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 134

Monday, Oct 18, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 135

Monday, Oct 18, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Middle 3-digits 10. TASK #2: Validate SEDOL HEADLINES Welcome to the Week #135. We are nearly halfway through the Hacktoberfest already. If you haven’t kickstarted your journey then please don’t delay it any further. You still have time submit minimum 4 Pull Requests to receive the specially designed T-shirt anywhere in the world, thanks to the origaniser, Digital Ocean.

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Colin Crain › Perl Weekly Review #131

Sunday, Oct 17, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review pages for Week 131 of The Weekly Challenge! Here we will take the time to discuss the submissions offered up by the team, factor out some common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any reasonable answers to that question would be as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 133

Monday, Oct 11, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 134

Monday, Oct 11, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Pandigital Numbers 10. TASK #2: Distinct Terms Count HEADLINES Welcome to the Week #134, we had more engagements than the previous week. Looks like Hacktoberfest festival is keeping everyone busy. We have participated in the annual event every year without fail. I am hoping it would get even busier.

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RECAP - The Weekly Challenge - 132

Monday, Oct 4, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 133

Monday, Oct 4, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Integer Square Root 10. TASK #2: Smith Numbers HEADLINES Welcome to the Week #133 and today is the first Monday of the month. So it is time to declare the champion. I announce the next champion, Jan Krnavek, a Raku enthusiast. He is ranked #36 in the leaderboard with total score of 218 as of today.

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Colin Crain › Perl Weekly Review #130

Sunday, Oct 3, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review pages for Week 130 of The Weekly Challenge! Here we will take the time to discuss the submissions offered up by the team, factor out some common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any collection of answers to that question would be as wide ranging and varied as the people who choose to join the team.

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Meet The Champion: August 2021

Sunday, Oct 3, 2021 by Mohammad S Anwar Perl

Get to know about Jorg Sommrey Welcome to the monthly series Meet The Champion. Last month we spoke to Flavio Poletti, the winner of July 2021. Today we are talking to Jorg Sommrey, the winner of August 2021 of The Weekly Challenge. I hope you are going to enjoy the interview. Mohammad: Tell us about your technical background? Jorg: My programming experiences started at High School. They had a transistor based “computer” the size and shape of a piano equipped with some limited drum memory.

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Colin Crain › Perl Weekly Review #129

Monday, Sep 27, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 129 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 131

Monday, Sep 27, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 132

Monday, Sep 27, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Mirror Dates 10. TASK #2: Hash Join HEADLINES Welcome to the Week #132. I would like to take this opportunity to thank every member of Early Bird Club for helping with task review. Your help and support is much appreciated. I would also like to thank Team PWC for suggesting fun tasks.

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RECAP - The Weekly Challenge - 130

Monday, Sep 20, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 131

Monday, Sep 20, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Consecutive Arrays 10. TASK #2: Find Pairs HEADLINES Let’s welcome Week #131 with 3 new members i.e. Rich Snyder, Ivan Dimitrov and Conor Hoekstra. We now have 240 members and 10 guests. Conor Hoeksta introduced new language J to Team PWC. After relatively quiet Week #129, last week was much better.

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Colin Crain › Perl Weekly Review #128

Sunday, Sep 19, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 128 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 129

Monday, Sep 13, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 130

Monday, Sep 13, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Odd Number 10. TASK #2: Binary Search Tree HEADLINES Welcome to the Week #130, a very special one. Why? Well, we are now 900+ days old today. The weekly challenge was born on Monday, 25th March 2019, so as of today we are 904 days old to be precise.

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Colin Crain › Perl Weekly Review #127

Sunday, Sep 12, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 127 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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Colin Crain › Perl Weekly Review #126

Monday, Sep 6, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 126 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 128

Monday, Sep 6, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 129

Monday, Sep 6, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Root Distance 10. TASK #2: Add Linked Lists HEADLINES Welcome to the week 129 and it is time to declare the champion and the winner is Jorg Sommrey currently ranked 28th in the leaderboard with 141 contributions in Perl and a blog so far.

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Colin Crain › Perl Weekly Review #125

Monday, Aug 30, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 125 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 127

Monday, Aug 30, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 128

Monday, Aug 30, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Maximum Sub-Matrix 10. TASK #2: Minimum Platforms HEADLINES Welcome to yet another fun week. It has been a great journey together. We have 2 new members joined us last week, Ioannis Bourlakos, and Ian Goodnight. Welcome on board Ioannis and Ian and thanks for your first contributions.

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Colin Crain › Perl Weekly Review #124

Tuesday, Aug 24, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 124 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 126

Monday, Aug 23, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 127

Monday, Aug 23, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Disjoint Sets 10. TASK #2: Conflict Intervals HEADLINES Congratulation Team PWC for reaching the 100+ contributions once again. We had 45 guest contributions too. Not a bad effort considering it is still holiday period for many members. Did you have notice, the github repository Perl Weekly Challenge Club now have 100 stars and 220 forks.

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Colin Crain › Perl Weekly Review #123

Sunday, Aug 22, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 123 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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Meet The Champion: July 2021

Friday, Aug 20, 2021 by Mohammad S Anwar Perl, Raku

Get to know about Flavio Poletti Welcome to the monthly series Meet The Champion. Today we are talking to Flavio Poletti, the winner of July 2021 of The Weekly Challenge. I hope you are going to enjoy the interview. Mohammad: Tell us about your technical background? Flavio: As a kid, I loved my C64 for programming, most because I was really bad at games. Probably little patience and poor coordination skills!

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RECAP - The Weekly Challenge - 125

Monday, Aug 16, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 126

Monday, Aug 16, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Count Numbers 10. TASK #2: Minesweeper Game HEADLINES Welcome to yet another edition of the weekly challenge. I noticed the Week #125 was not so happening as compare to other weeks. Could holiday season be the reason? Possibly. I know some of the Team PWC members are enjoying the holiday break.

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RECAP - The Weekly Challenge - 124

Monday, Aug 9, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 125

Monday, Aug 9, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Pythagorean Triples 10. TASK #2: Binary Tree Diameter HEADLINES Welcome to the 125th edition of the weekly challenge. I would like to thank every Team PWC members for sharing fun tasks. It is a big help and reduce my work load. So please keep sending new challenges.

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Colin Crain › Perl Weekly Review #122

Sunday, Aug 8, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 122 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 123

Monday, Aug 2, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 124

Monday, Aug 2, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Happy Women Day 10. TASK #2: Tug of War HEADLINES Welcome to the first Monday of the month and as you all know, it is the time of the month when I pick a champion among the Team PWC. With great pride, I announce Flavio Poletti as the next Champion of the weekly challenge.

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Colin Crain › Perl Weekly Review #121

Sunday, Aug 1, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 121 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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Colin Crain › Perl Weekly Review #120

Monday, Jul 26, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 120 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 122

Monday, Jul 26, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 123

Monday, Jul 26, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Ugly Numbers 10. TASK #2: Square Points HEADLINES Welcome to the special edition of Week #123. Why special? Well, the number 123 is special and magic. I am glad, we did it again, we crossed the magic number 100+ contributions one more time. Thank you Team PWC.

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Colin Crain › Perl Weekly Review #119

Monday, Jul 19, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 119 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 121

Monday, Jul 19, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 122

Monday, Jul 19, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Average of Stream 10. TASK #2: Basketball Points HEADLINES Last week, we had 3 new members joined Team PWC. jdos22, Matthew Neleigh and Gurunandan Bhat are all experienced Perl hackers. jdos22 shared his solution to the Invert Bit task in Perl. Matthew Neleigh not only shared solutions to Week 121 but also Week #119 and Week #120.

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Colin Crain › Perl Weekly Review #118

Thursday, Jul 15, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 118 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 120

Monday, Jul 12, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 121

Monday, Jul 12, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Invert Bit 10. TASK #2: The Travelling Salesman HEADLINES The Week #120 became very special as far as guest contributions are concerned. We received 92 guest contributions last week in 33 languages, thanks to Team PWC. 16 guests contributed to the Week #120 record best figure.

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Colin Crain › Perl Weekly Review #117

Monday, Jul 5, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 117 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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RECAP - The Weekly Challenge - 119

Monday, Jul 5, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 120

Monday, Jul 5, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Swap Odd/Even bits 10. TASK #2: Clock Angle HEADLINES Week #119 seems to be a memorable week. So many things happened and so fast. Domain name switch over is ongoing. Is it coincidence the domain switch brought sudden interest and new members as listed below.

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Colin Crain › Perl Weekly Review #116

Monday, Jun 28, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 116 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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RECAP - Perl Weekly Challenge - 118

Monday, Jun 28, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 119

Monday, Jun 28, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Swap Nibbles 10. TASK #2: Sequence without 1-on-1 HEADLINES Welcome to the new home for The Weekly Challenge, a shiny new domain, theweeklychallenge.org. I had the domain registered long time ago but never got around to switch over. We, Gabor and I, spent an hour yesterday and got it moved to new domain.

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Colin Crain › Perl Weekly Review #115

Friday, Jun 25, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 115 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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RECAP - Perl Weekly Challenge - 117

Monday, Jun 21, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 118

Monday, Jun 21, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Binary Palindrome 10. TASK #2: Adventure of Knight HEADLINES Last week, I had the opportunity to meet the champion, Pete Houston. It was great talking to him. Two new members, Lucas Ransan and Adam Herzog, joined the weekly challenge last week. We now have 225 members in the Team PWC.

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Meet The Champion: May 2021

Sunday, Jun 20, 2021 by Mohammad S Anwar Perl, Raku

Get to know about Pete Houston Welcome to the monthly series Meet The Champion. Last month we spoke to Aaron Smith, the winner of April 2021. Today we are talking to Pete Houston, the winner of May 2021 of The Weekly Challenge. I hope you are going to enjoy the interview. Mohammad: Tell us about your technical background? Pete: The 8-bit home computing boom started me off in the 80s with BASIC and Z80 machine code.

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Colin Crain › Perl Weekly Review #114

Monday, Jun 14, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 114 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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RECAP - Perl Weekly Challenge - 116

Monday, Jun 14, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 117

Monday, Jun 14, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Missing Row 10. TASK #2: Find Possible Paths HEADLINES I have seen the familiar faces, Bob Lied and Cristina Heredia, back again. Cristina even shared Python. Thanks for your contributions. I know, I haven’t participated in the weekly challenge in the last 2 weeks.

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Colin Crain › Perl Weekly Review #113

Monday, Jun 7, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 113 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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RECAP - Perl Weekly Challenge - 115

Monday, Jun 7, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 116

Monday, Jun 7, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Number Sequence 10. TASK #2: Sum of Squares HEADLINES Today is the first Monday of the month and I eagerly wait for this moment to declare the next Champion of PWC. It is not just about the prize money but it gives me reason to celebrate the contributions of another Champion.

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Lets be friend ...

Friday, Jun 4, 2021 by Mohammad S Anwar Perl, Raku

What is the point of this blog? It has been a long time since I last blog. The main reason behind the blog is put forward my views in response to the questions raised earlier. It did hurt me to read about it. Havind said, I do my best not to upset anyone knowingly. It would have been lot better if it was addressed to me and not public. The mission PWC came into existence to fill the void created by the closure of “Pull Request Challenge” ran by Neil Bowers.

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Colin Crain › Perl Weekly Review #112

Monday, May 31, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 112 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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RECAP - Perl Weekly Challenge - 114

Monday, May 31, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 115

Monday, May 31, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: String Chain 10. TASK #2: Largest Multiple HEADLINES Welcome to the Week #115 with the interview with Tyler Wardhaugh. Last week started with the pleasant surprise from Dave Cross who shared Perl solutions first thing on Monday morning. I would also like to mention another name Christian Jaeger who joined the Team PWC recently introduced FunctionalPerl and shared his solution using it.

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Meet The Champion: March 2021

Sunday, May 30, 2021 by Mohammad S Anwar Clojure, Lua, Python, Perl, Raku

Get to know about Tyler Wardhaugh Welcome to the monthly series Meet The Champion. Last month we spoke to Aaron Smith, the winner of April 2021. Today we are talking to Tyler Wardhaugh, the winner of March 2021 of The Weekly Challenge. I hope you are going to enjoy the interview. Mohammad: Tell us about your technical background? Tyler: I began my career doing web development in the early ’90s.

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Colin Crain › Perl Weekly Review #111

Monday, May 24, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 111 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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RECAP - Perl Weekly Challenge - 113

Monday, May 24, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 114

Monday, May 24, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Next Palindrome Number 10. TASK #2: Higher Integer Set Bits HEADLINES Let us all welcome, Christian Jaeger, to the Team PWC. In the first week itself, we have received solutions in Perl and Haskell. And not only that we even had bonus, blog as well.

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Colin Crain › Perl Weekly Review #110

Monday, May 17, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 110 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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RECAP - Perl Weekly Challenge - 112

Monday, May 17, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 113

Monday, May 17, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Represent Integer 10. TASK #2: Recreate Binary Tree HEADLINES Let us all welcome, Dimitar Dimitrov, to the Team PWC. In the first week itself, we have received solution in Perl. Mohammad Anwar: Ordered Letters Let us share some interesting stats from the GitHub repository.

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Colin Crain › Perl Weekly Review #109

Monday, May 10, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 109 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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RECAP - Perl Weekly Challenge - 111

Monday, May 10, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for your continuous support and encouragement. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 112

Monday, May 10, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Canonical Path 10. TASK #2: Climb Stairs HEADLINES Last week we declared Aaron Smith as the Champion of the month. We interview with him few days ago, please go check it out. Let us all welcome, David Schwartz, to the Team PWC. In the first week itself, we have received solutions in Perl and Python.

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Meet The Champion: April 2021

Saturday, May 8, 2021 by Mohammad S Anwar Perl, Raku

Get to know about Aaron Smith Welcome to the monthly series Meet The Champion. Last month we spoke to Tyler Wardhaugh, the winner of March 2021. Today we are talking to Aaron Smith, the winner of April 2021 of The Weekly Challenge. I hope you are going to enjoy the interview. Mohammad: Tell us about your technical background? Aaron: I started programming when I was in grad school for Bioinformatics.

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RECAP - Perl Weekly Challenge - 110

Monday, May 3, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Let me congratulate Cristina Heredia on joining the Centurion Club. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 111

Monday, May 3, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Search Matrix 10. TASK #2: Ordered Letters HEADLINES Here we are in the Week #111. The number 111 is very special and has a story as well. I am a big fan of the game of cricket, you shouldn’t be surprised by the fact I come from India.

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Colin Crain › Perl Weekly Review #108

Sunday, May 2, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 108 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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Colin Crain › Perl Weekly Review #107

Monday, Apr 26, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 107 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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RECAP - Perl Weekly Challenge - 109

Monday, Apr 26, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thanks to each and every members of Team PWC for making the weekly challenge so fun whilst knowledge sharing. I don’t have the data but I think, for the first time, we have SIX Star Contributors.

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The Weekly Challenge - 110

Monday, Apr 26, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Valid Phone Numbers 10. TASK #2: Transpose File HEADLINES Welcome to the Week #110. It appears to be a really long journey. It is only possible because of all your supports and encouragements. There are couple of things that made this week very special.

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Colin Crain › Perl Weekly Review #106

Monday, Apr 19, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 106 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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RECAP - Perl Weekly Challenge - 108

Monday, Apr 19, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thanks to each and every contributors. We highly appreciate your support and encouragements. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 109

Monday, Apr 19, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Chowla Numbers 10. TASK #2: Four Squares Puzzle HEADLINES First thing first, please accept my apology for the delay. This is the first weekly challenge in the month of Ramadan 2021. My routine plan went for a toss. I should have been more prepared to the new routine because of Ramadan.

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RECAP - Perl Weekly Challenge - 107

Monday, Apr 12, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES W. Luis Mochan joined the Centurion Club this week, congratulations. Stuart Little shared solutions in Node.js for the first time. Please keep up the great work. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 108

Monday, Apr 12, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Locate Memory 10. TASK #2: Bell Numbers HEADLINES For the second week in a row, I have participated in the weekly challenge. Looks like, I am getting there, still a long way to my good old routine. I enjoy the company of Lance Wicks and kind of getting motivated as well.

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Colin Crain › Perl Weekly Review #105

Sunday, Apr 11, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 105 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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Colin Crain › Perl Weekly Review #104

Monday, Apr 5, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 104 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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RECAP - Perl Weekly Challenge - 106

Monday, Apr 5, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Welcome back Guillermo Ramos and thanks for sharing solutions in Go lang. Another member, Richard Park, made a comeback with solutions in APL. Looks like this is comeback week, we have another member, Ben Davies, sharing the solutions in Raku after a long time.

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The Weekly Challenge - 107

Monday, Apr 5, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Self-descriptive Numbers 10. TASK #2: List Methods HEADLINES Finally we are now 2 years old and we should start behaving like serious player now. Agree? I would like to keep the fun part alive associated with the weekly challenge. I urge everyone please don’t restrict yourself to any rules.

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Colin Crain › Perl Weekly Review #103

Monday, Mar 29, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 103 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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RECAP - Perl Weekly Challenge - 105

Monday, Mar 29, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Welcome to yet another fantastic week for the guest contributions. One day, it might go past the regular contributions of Perl and Raku. This week, Laurent Rosenfeld, introduced few new languages.

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The Weekly Challenge - 106

Monday, Mar 29, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Maximum Gap 10. TASK #2: Decimal String HEADLINES Belated 2nd Birthday everyone assoicated with The Weekly Challenge (a.k.a. Perl Weekly Challenge). Apology for not getting the celebration video done on the day. I have been extra busy with the routine office work and would remain so next couple of weeks.

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Colin Crain › Perl Weekly Review #102

Wednesday, Mar 24, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 102 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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RECAP - Perl Weekly Challenge - 104

Monday, Mar 22, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Welcome to the recaps of Week #104. Enjoy !!! STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it. 1. Jaldhar H.

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The Weekly Challenge - 105

Monday, Mar 22, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Nth root 10. TASK #2: The Name Game HEADLINES Welcome to the Week #105. We are almost there to complete our second year of The Weekly Challenge (a.k.a. Perl Weekly Challenge). It has been a great experience. I have never done anything on this scale before.

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Colin Crain › Perl Weekly Review #101

Monday, Mar 15, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 101 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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RECAP - Perl Weekly Challenge - 103

Monday, Mar 15, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Welcome to the Week 103. Please check out the incredible solutions by the Team PWC. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 104

Monday, Mar 15, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: FUSC Sequence 10. TASK #2: NIM Game HEADLINES This week was relative quiet but the modd was upbeat at always. Thanks to Team PWC for their support and encouragement. Special thanks to those who blog about it as well. You are doing great service to promote Perl and Raku.

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Meet The Champion: February 2021

Sunday, Mar 14, 2021 by Mohammad S Anwar Perl, Raku

Get to know about James Smith Welcome to the monthly series Meet The Champion. Last month we spoke to Stuart Little, the winner of January 2021. Today we are talking to James Smith, the winner of February 2021 of The Weekly Challenge. I hope you are going to enjoy the interview. Mohammad: Tell us about your technical background? James: I have been programming now for about 40 years, my first experience was when I was at school using a Teletype linked to the local college, and then with a Sinclair ZX81 - and Basic.

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Colin Crain › Perl Weekly Review #100

Monday, Mar 8, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 100 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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RECAP - Perl Weekly Challenge - 102

Monday, Mar 8, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Welcome back Richard Park and thanks for sharing solutions in APL. Thanks James Smith for your first guest contributions in PHP. I would like to mention one more name when it comes to guest contributions, snd it is Abigail for the varieties of solutions every week.

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The Weekly Challenge - 103

Monday, Mar 8, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Chinese Zodiac 10. TASK #2: What’s playing? HEADLINES Recently we celebrated the 100th week of The Weekly Challenge and now we are moving to another celebration i.e. 2nd Anniversary. Honestly speaking I never dreamt of coming this far. Thanks to the support and encouragement of 200+ strong members of Team PWC.

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Colin Crain › Perl Weekly Review #099

Wednesday, Mar 3, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 099 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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RECAP - Perl Weekly Challenge - 101

Monday, Mar 1, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Please enjoy this week contributions. Thank You. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it. 1) Roger Bell_West CONTRIBUTION STATS The total contributions in the week is 71.

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The Weekly Challenge - 102

Monday, Mar 1, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Rare Numbers 10. TASK #2: Hash-counting String HEADLINES Welcome to the Week #102. It has been relatively quiet week, I noticed. Even I am not well, just the seasonal bit. I hope to come back harder this week. Today is the first Monday of the month and time to declare the Champion.

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Colin Crain › Perl Weekly Review #098

Tuesday, Feb 23, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 098 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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RECAP - Perl Weekly Challenge - 100

Monday, Feb 22, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Thank you Team PWC for making the Week #100 such a memorable week. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 101

Monday, Feb 22, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Pack a Spiral 10. TASK #2: Origin-containing Triangle HEADLINES The Week #100 came and gone. Lets continue the journey together and learn something new from each other. This week Mark J. Reed and Pablo Saavedra joined the Team PWC. We welcome both of them and wish an enjoyable ride with us.

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Meet The Champion: January 2021

Tuesday, Feb 16, 2021 by Mohammad S Anwar Perl, Raku

Get to know about Stuart Little Welcome to the monthly series Meet The Champion. Last month we spoke to Niels van Dijke, the winner of December 2020. Today we are talking to Stuart Little, the winner of January 2021 of The Weekly Challenge. I hope you are going to enjoy the interview. Mohammad: Tell us about your technical background? Stuart: I don’t work in IT or make a living as a programmer, so on that front I consider myself an amateur.

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RECAP - Perl Weekly Challenge - 099

Monday, Feb 15, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES As you all know we are now in the Week #100, let us make this special by making it the best week as far as regular contributions of Perl and Raku along with blog.

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The Weekly Challenge - 100

Monday, Feb 15, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Fun Time 10. TASK #2: Triangle Sum HEADLINES The wait is over today finally and here we enter into the 100th week of The Weekly Challenge. There are plenty of happy stories to share with the team. I still remember the day I started the journey, it was just me.

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Colin Crain › Perl Weekly Review #097

Monday, Feb 8, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 097 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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RECAP - Perl Weekly Challenge - 098

Monday, Feb 8, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Paulo Custodio introduced new language Ada. We now have guest contributions in 56 programming languages. Thanks to all guest contributors for doing past week challenges. It now looks same as regular contributions.

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The Weekly Challenge - 099

Monday, Feb 8, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Pattern Match 10. TASK #2: Unique Subsequence HEADLINES Welcome to Week #99 of the weekly challenge. We are almost there, so please keep your seat belt fastened. As you all know last week we declared Stuart Little, first Champion of 2021. To my surprise he donated the prize money towards the fund for the website.

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Colin Crain › Perl Weekly Review #096

Sunday, Feb 7, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 096 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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Colin Crain › Perl Weekly Review #095

Tuesday, Feb 2, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 095 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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RECAP - Perl Weekly Challenge - 097

Monday, Feb 1, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Welcome back Lance Wicks, Richard Park and Alexander Pankoff after the break. Thanks Cheok-Yin Fung for introducing Smalltalk language. Thanks Richard Park for introducing BQN language. I would like to thank Team PWC for showing interest in the past challenges.

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The Weekly Challenge - 098

Monday, Feb 1, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Read N-characters 10. TASK #2: Search Insert Position HEADLINES We are fast approaching the 100th week of the weekly challenge. Have you got any plan? Any suggestion to make it a special? Do you know any fun and challenging tasks that we have not done yet for the special week?

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RECAP - Perl Weekly Challenge - 096

Monday, Jan 25, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Welcome back Ben Davies after the break. It gives me immense pleasure when I see member finds time in their routine schedule for us. Lubos Kolouch is a senior member of Team PWC and when he showed interesting in the past challenges and shared Perl, it filled me with pride.

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The Weekly Challenge - 097

Monday, Jan 25, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Caesar Cipher 10. TASK #2: Binary Substrings HEADLINES Welcome to week 97. Three more weeks to go before we reach 3 digits. If you remember, recently I asked for suggestions of ways to celebrate the big day. You still have time to send in your suggestions.

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Colin Crain › Perl Weekly Review #094

Wednesday, Jan 20, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 094 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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RECAP - Perl Weekly Challenge - 095

Monday, Jan 18, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01) HEADLINES 02) STAR CONTRIBUTORS 03) CONTRIBUTION STATS 04) GUESTS 05) LANGUAGES 06) CENTURION CLUB 07) DAMIAN CONWAY’s CORNER 08) ANDREW SHITOV’s CORNER 09) PERL SOLUTIONS 10) RAKU SOLUTIONS 11) PERL & RAKU SOLUTIONS HEADLINES With recent push by Stuart Little, Haskell (245) became the #1 guest language pushing Python (223) to #2. I never thought Python would ever loose the top position. Python is still the most favourite language among the members.

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The Weekly Challenge - 096

Monday, Jan 18, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01) HEADLINES 02) SPONSOR 03) RECAP 04) PERL REVIEW 05) RAKU REVIEW 06) CHART 07) NEW MEMBERS 08) GUESTS 09) TASK #1: Reverse Words 10) TASK #2: Edit Distance HEADLINES Before I forget again, I would like to welcome back our friend Luca Ferrari. I still remember his note in his last blog (week #76) before the break. On the very next monday, September 7th, I will be in hospital for a new surgery on my (last) working right eye.

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Colin Crain › Perl Weekly Review #093

Sunday, Jan 17, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 093 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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RECAP - Perl Weekly Challenge - 094

Monday, Jan 11, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES As per the current trend of playing with other languages, Stuart Little pushed himself to rank #2 this week with all his contributions. Well done. Java is not very popular language among the Team PWC but this week I saw Mohammad Meraj Zia and Cheok-Yin Fung shared solution in Java.

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The Weekly Challenge - 095

Monday, Jan 11, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. SPONSOR 03. RECAP 04. PERL REVIEW 05. RAKU REVIEW 06. CHART 07. NEW MEMBERS 08. GUESTS 09. TASK #1: Palindrome Number 10. TASK #2: Demo Stack HEADLINES Last week, we declared Niels van Dijke the last Champion of the year 2020. We are proud to present the interview with him. As always happens, you get to know a lot about the champion. This time around, I was pleasantly surprised to know a lot about Niels.

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Colin Crain › Perl Weekly Review #092

Saturday, Jan 9, 2021 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 092 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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Meet The Champion: December 2020

Saturday, Jan 9, 2021 by Mohammad S Anwar Perl

Get to know about Niels van Dijke Welcome to the monthly series Meet The Champion. Last month we spoke to Simon Green, the winner of November 2020. Today we are talking to Niels van Dijke, the winner of December 2020 of The Weekly Challenge. I hope you are going to enjoy the interview. Mohammad: Tell us about your technical background? Niels: I started programming around the age of 11 when my dad borrowed a Commodore PET computer from his work during a school holiday period.

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RECAP - Perl Weekly Challenge - 093

Monday, Jan 4, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Stuart Little has been sharing solutions in Raku. He has now shifted his focus on Haskell. It is always nice to see the varieties. Paulo Custodio for the first time shared solutions in Basic, Forth, C++ and C.

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The Weekly Challenge - 094

Monday, Jan 4, 2021 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. RECAP 3. PERL REVIEW 4. RAKU REVIEW 5. CHART 6. NEW MEMBERS 7. GUESTS 8. TASK #1: Group Anagrams 9. TASK #2: Binary Tree to Linked List HEADLINES Welcome to the first edition of weekly challenge in the year 2021. Today is the first Monday of the month and time to declare the Champion. With great pleasure, I announce Niels van Dijke as the Champion.

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Colin Crain › Perl Weekly Review #091

Wednesday, Dec 30, 2020 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 091 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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RECAP - Perl Weekly Challenge - 092

Monday, Dec 28, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 01. HEADLINES 02. STAR CONTRIBUTORS 03. CONTRIBUTION STATS 04. GUESTS 05. LANGUAGES 06. CENTURION CLUB 07. DAMIAN CONWAY’s CORNER 08. ANDREW SHITOV’s CORNER 09. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES I am pleasantly surprised to see the sudden interest in guest languages. Laurent Rosenfeld has started contributing in Scala regularly. Even Paulo Custodio started sharing solutions in Forth. There is another member, Roger Bell_West who has been contributing in Python, Ruby and Rust consistently.

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The Weekly Challenge - 093

Monday, Dec 28, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. ADVENT CALENDAR 3. RECAP 4. PERL REVIEW 5. RAKU REVIEW 6. CHART 7. NEW MEMBERS 8. GUESTS 9. TASK #1: Max Points 10. TASK #2: Sum Path HEADLINES Congratulation birthday boy Laurent Rosenfeld on becoming the first member with 1000+ score. He has maintained the number #1 position for the longest period. He is one of the few members associated with us since the beginning.

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Colin Crain › Perl Weekly Review #090

Friday, Dec 25, 2020 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 090 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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Advent Calendar - December 24, 2020

Thursday, Dec 24, 2020 by Mohammad S Anwar Perl, Raku

Advent Calendar 2020 | Day 23 | Day 24 | TABLE OF CONTENTS 1. Headlines 2. Leader Elements 3. YouTube Video 4. Perl Solution 5. Raku Solution Headlines Finally we reached the end of the Advent Calendar 2020. I wasn’t prepared for Advent Calendar this year initially as I knew I wouldn’t be able to do it. However, on the day one, I pushed myself and decided to give it a try.

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Advent Calendar 2020

Thursday, Dec 24, 2020 by Mohammad S Anwar Perl, Raku

| 2019 | 2021 | Here we go, we are back with the Advent Calendar 2020. I promise to present interesting topic every day contributed by esteemed members of Team PWC. MON TUE WED THU FRI SAT SUN

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Advent Calendar - December 23, 2020

Wednesday, Dec 23, 2020 by James Smith Perl

Advent Calendar 2020 | Day 22 | Day 23 | Day 24 | The gift is presented by James Smith. Today he is talking about his solution to the task Insert Interval of “The Weekly Challenge - 092”. This is re-produced for Advent Calendar 2020 from the original post by James Smith. Insert Interval You are given a set of sorted non-overlapping intervals and a new interval. Write a script to merge the new interval to the given set of intervals.

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Meet The Champion: November 2020

Tuesday, Dec 22, 2020 by Mohammad S Anwar Perl

Get to know about Simon Green Welcome to the monthly series Meet The Champion. Last month we spoke to Andrew Shitov, the winner of October 2020. Today we are talking to Simon Green, the winner of November 2020 of The Weekly Challenge. I hope you are going to enjoy the interview. Mohammad: Tell us about your technical background? Simon: I’ve always had an interest in software development, even as a kid on an Amstrad CPC 664.

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Advent Calendar - December 21, 2020

Monday, Dec 21, 2020 by Saif Ahmed Perl

Advent Calendar 2020 | Day 20 | Day 21 | Day 22 | The gift is presented by Saif Ahmed. Today he is talking about his solution to the task Guest house lights of “The Weekly Challenge - 039”. This is re-produced for Advent Calendar 2020 from the original post by Saif Ahmed. No spoilers here, just a rambling. There are probably countless times when one relies on the genius of others to complete tasks.

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RECAP - Perl Weekly Challenge - 091

Monday, Dec 21, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. STAR CONTRIBUTORS 3. CONTRIBUTION STATS 4. GUESTS 5. LANGUAGES 6. CENTURION CLUB 7. DAMIAN CONWAY’s CORNER 8. ANDREW SHITOV’s CORNER 9. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES We are getting end of year 2020. I can’t wait to get over and leave behind troublesome year. Running the weekly challenge kept me occupied through out. The main attraction these days are the contributions in guest languages.

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The Weekly Challenge - 092

Monday, Dec 21, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. ADVENT CALENDAR 3. RECAP 4. PERL REVIEW 5. RAKU REVIEW 6. CHART 7. NEW MEMBERS 8. GUESTS 9. TASK #1: Isomorphic Strings 10. TASK #2: Insert Interval HEADLINES We have 2 new members joining the Team PWC this week, Paulo Custodio and Mimosinnet. We now have 211 active members across the globe. It would have been nice to plot the locations in the world map.

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Advent Calendar - December 20, 2020

Sunday, Dec 20, 2020 by Yozen Hernandez Perl

Advent Calendar 2020 | Day 19 | Day 20 | Day 21 | The gift is presented by Yozen Hernandez. Today he is talking about his solution to the task Ackermann function of “The Weekly Challenge - 017”. This is re-produced for Advent Calendar 2020 from the original post by Yozen Hernandez. The Weekly Challenge is back, and our first challenge was to implement a function known as the Ackermann function:

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Advent Calendar - December 19, 2020

Saturday, Dec 19, 2020 by Duncan C. White Perl

Advent Calendar 2020 | Day 18 | Day 19 | Day 20 | The gift is presented by Duncan C. White. Today he is talking about his solution to the task Head to Tail Pokémon names of “The Weekly Challenge - 025”. This is re-produced for Advent Calendar 2020 from the original post by Duncan C. White. I’m Duncan White, an experienced and professional programmer, and have been programming for well over 30 years, mainly in C and Perl, although I know many other languages.

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Colin Crain › Perl Weekly Review #089

Friday, Dec 18, 2020 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 089 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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Advent Calendar - December 16, 2020

Wednesday, Dec 16, 2020 by Yet Ebreo Perl, C

Advent Calendar 2020 | Day 15 | Day 16 | Day 17 | The gift is presented by Yet Ebreo. Today he is talking about his solution to the task Calling C function of “The Weekly Challenge - 029”. This is re-produced for Advent Calendar 2020 from the original post by Yet Ebreo. Write a script to demonstrate calling a C function. It could be any user defined or standard C function.

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Advent Calendar - December 15, 2020

Tuesday, Dec 15, 2020 by Laurent Rosenfeld Perl, Raku

Advent Calendar 2020 | Day 14 | Day 15 | Day 16 | The gift is presented by Laurent Rosenfeld, the first champion of the weekly challenge. Today he is talking about his solution to the task Left Rotation of “The Weekly Challenge - 078”. This is re-produced for Advent Calendar 2020 from the original post by Laurent Rosenfeld. Left Rotation You are given array @A containing positive numbers and @B containing one or more indices from the array @A.

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Advent Calendar - December 14, 2020

Monday, Dec 14, 2020 by Myoungjin Jeon Perl

Advent Calendar 2020 | Day 13 | Day 14 | Day 15 | The gift is presented by Myoungjin Jeon. Today he is talking about his solution to the task Trapped Rain Water of “The Weekly Challenge - 079”. This is re-produced for Advent Calendar 2020 from the original post by Myoungjin Jeon. It has been about 10 weeks since I joined the weekly challenge. I’m not a professional programmer but I have experience with perl and some C lang.

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RECAP - Perl Weekly Challenge - 090

Monday, Dec 14, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. STAR CONTRIBUTORS 3. CONTRIBUTION STATS 4. GUESTS 5. LANGUAGES 6. CENTURION CLUB 7. DAMIAN CONWAY’s CORNER 8. ANDREW SHITOV’s CORNER 9. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Stuart Little continued rising up in the rank by solving past weeks solutions. He is currently ranked #17 with the score 308. In the last recent few weeks, I have seen the rising popularity of contributions in guest languages.

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The Weekly Challenge - 091

Monday, Dec 14, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. ADVENT CALENDAR 3. RECAP 4. PERL REVIEW 5. RAKU REVIEW 6. CHART 7. NEW MEMBERS 8. GUESTS 9. TASK #1: Count Number 10. TASK #2: Jump Game HEADLINES We have 3 new members joining the Team PWC this week, Garrett Goebel, Mihail Iosilevitch and Mohammad Meraj Zia. It became even more special as a very close and dear friend Mohammad Meraj Zia finally joined the team.

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Advent Calendar - December 13, 2020

Sunday, Dec 13, 2020 by Bartosz Jarzyna Perl

Advent Calendar 2020 | Day 12 | Day 13 | Day 14 | The gift is presented by Bartosz Jarzyna. Today he is talking about his solution to the task Majority Element of “The Weekly Challenge - 074”. This is re-produced for Advent Calendar 2020 from the original post by Bartosz Jarzyna. I’ve spotted this week as a great opportunity to test my own Quantum::Superpositions::Lazy module while doing some coding challenges.

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Colin Crain › Perl Weekly Review #088

Sunday, Dec 13, 2020 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 088 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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Advent Calendar - December 12, 2020

Saturday, Dec 12, 2020 by Cheok-Yin Fung Perl

Advent Calendar 2020 | Day 11 | Day 12 | Day 13 | The gift is presented by Cheok-Yin Fung. Today she is talking about her solution to the task Smallest Multiple of “The Weekly Challenge - 049”. Smallest Multiple Write a script to accept a positive number(integer) as command line argument and print the smallest multiple of the given number consists of digits 0 and 1. For example: For given number 55, the smallest multiple is 110 consisting of digits 0 and 1.

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Advent Calendar - December 11, 2020

Friday, Dec 11, 2020 by Adam Russell Perl

Advent Calendar 2020 | Day 10 | Day 11 | Day 12 | The gift is presented by Adam Russell. Today he is talking about his solution to the task Lines Range of “The Weekly Challenge - 072”. This is re-produced for Advent Calendar 2020 from the original post by Adam Russell. You are given a text file name $file and range $A - $B where $A <= $B.

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Advent Calendar - December 10, 2020

Thursday, Dec 10, 2020 by Walt Mankowski Perl

Advent Calendar 2020 | Day 9 | Day 10 | Day 11 | The gift is presented by Walt Mankowski. Today he is talking about his solution to the task Trim Linked List of “The Weekly Challenge - 071”. This is re-produced for Advent Calendar 2020 from the original post by Walt Mankowski. You are given a singly linked list and a positive integer $N (>0). Write a script to remove the $Nth node from the end of the linked list and print the linked list.

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Advent Calendar - December 9, 2020

Wednesday, Dec 9, 2020 by Javier Luque Perl, Raku

Advent Calendar 2020 | Day 8 | Day 9 | Day 10 | The gift is presented by Arne Sommer. Today he is talking about his solution to the task Divide Integers of “The Weekly Challenge - 066”. This is re-produced for Advent Calendar 2020 from the original post by Arne Sommer. You are given two integers $M and $N. Write a script to divide the given two integers i.

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Advent Calendar - December 8, 2020

Tuesday, Dec 8, 2020 by Javier Luque Perl, Raku

Advent Calendar 2020 | Day 7 | Day 8 | Day 9 | The gift is presented by Roger Bell_West. Today he is talking about his solution to the task Sort Email Adresses of “The Weekly Challenge - 062”. This is re-produced for Advent Calendar 2020 from the original post by Roger Bell_West. Write a script that takes a list of email addresses (one per line) and sorts them first by the domain part of the email address, and then by the part to the left of the @ (known as the mailbox).

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Advent Calendar - December 7, 2020

Monday, Dec 7, 2020 by Javier Luque Perl, Raku

Advent Calendar 2020 | Day 6 | Day 7 | Day 8 | The gift is presented by Javier Luque. Today he is talking about his solution to the task IPv4 Partition of “The Weekly Challenge - 061”. This is re-produced for Advent Calendar 2020 from the original post by Javier Luque. IPv4 Partition You are given a string containing only digits (0..9). The string should have between 4 and 12 digits.

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RECAP - Perl Weekly Challenge - 089

Monday, Dec 7, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. STAR CONTRIBUTORS 3. CONTRIBUTION STATS 4. GUESTS 5. LANGUAGES 6. CENTURION CLUB 7. DAMIAN CONWAY’s CORNER 8. ANDREW SHITOV’s CORNER 9. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES The Week 89 will be remember for the contributions in the guest languages by the esteemed members of Team PWC. I am sure, you would probably need more than a week to grasp the amount of contributions to consume.

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The Weekly Challenge - 090

Monday, Dec 7, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. ADVENT CALENDAR 3. RECAP 4. PERL REVIEW 5. RAKU REVIEW 6. CHART 7. NEW MEMBERS 8. GUESTS 9. TASK #1: DNA Sequence 10. TASK #2: Ethiopian Multiplication HEADLINES Today is the first monday of the month and time to declare the champion of last month. With great pleasure, we announce Simon Green as the Champion. Simon joined the Team PWC in the week 68.

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Advent Calendar - December 5, 2020

Saturday, Dec 5, 2020 by Dave Jacoby Perl

Advent Calendar 2020 | Day 4 | Day 5 | Day 6 | The gift is presented by Dave Jacoby. Today he is talking about his solution to the task Invert Tree of “The Weekly Challenge - 057”. This is re-produced for Advent Calendar 2020 from the original post by Dave Jacoby. TASK #1 › Invert Tree You are given a full binary tree of any height, similar to the one below:

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Advent Calendar - December 4, 2020

Friday, Dec 4, 2020 by Andrew Shitov Perl, Raku

Advent Calendar 2020 | Day 3 | Day 4 | Day 5 | The gift is presented by Andrew Shitov. Today he is talking about his solution to “The Weekly Challenge - 089”. Christmas time, and it’s time to talk to each and every one! It’s a great idea to approach people by speaking their languages. In today’s post, let me demonstrate a number of working solutions of the first problem of Week 89 of The Weekly Challenge in 22 different programming languages.

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Advent Calendar - December 3, 2020

Thursday, Dec 3, 2020 by E. Choroba Perl

Advent Calendar 2020 | Day 2 | Day 3 | Day 4 | The gift is presented by E. Choroba. Today he is talking about his solution to the task LRU Cache of “The Weekly Challenge - 049”. This is re-produced for Advent Calendar 2020 from the original post by E. Choroba. LRU Cache Write a script to demonstrate LRU Cache feature. It should support operations get and set.

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Advent Calendar - December 2, 2020

Wednesday, Dec 2, 2020 by Ryan Thompson Perl, Raku

Advent Calendar 2020 | Day 1 | Day 2 | Day 3 | The gift is presented by Ryan Thompson. Today he is talking about his solutions to the task Make it $200 of “The Weekly Challenge - 044”. This is re-produced for Advent Calendar 2020 from the original post by Ryan Thompson. Make it $200 For challenge #2 this week, the task is to start with $1, and by either adding $1 or doubling the amount, reach $200 in the smallest possible number of steps.

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Advent Calendar - December 1, 2020

Tuesday, Dec 1, 2020 by Jaldhar H. Vyas Perl, Raku

Advent Calendar 2020 | Day 1 | Day 2 | The gift is presented by Jaldhar H. Vyas. Today he is talking about his solutions to “The Weekly Challenge - 042”. This is re-produced for Advent Calendar 2020 from the original post by Jaldhar H. Vyas. Octal Number System Write a script to print decimal number 0 to 50 in Octal Number System. For example: Decimal 0 = Octal 0 Decimal 1 = Octal 1 Decimal 2 = Octal 2 Decimal 3 = Octal 3 Decimal 4 = Octal 4 Decimal 5 = Octal 5 Decimal 6 = Octal 6 Decimal 7 = Octal 7 Decimal 8 = Octal 10 Fortunately, Mohammed has eased my re-entry with an easy task.

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RECAP - Perl Weekly Challenge - 088

Monday, Nov 30, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. YouTube WEEKLY 3. STAR CONTRIBUTORS 4. CONTRIBUTION STATS 5. GUESTS 6. LANGUAGES 7. CENTURION CLUB 8. DAMIAN CONWAY’s CORNER 9. ANDREW SHITOV’s CORNER 10. PERL SOLUTIONS 11. RAKU SOLUTIONS 12. PERL & RAKU SOLUTIONS HEADLINES James Smith shared solutions for Week #86 and Week #87. Myoungjin Jeon shared varieties of solutions this week i.e. Elm, Fish, Go, Haskell and Lisp. Stuart Little, a big Raku fan, shared solutions for Week #1, Week #2, Week #3, Week #4, Week #7, Week #8, Week #9, Week #11, Week #13, Week #14, Week #15, Week #17, Week #18, Week #19, Week #20 and Week #65.

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The Weekly Challenge - 089

Monday, Nov 30, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. RECAP 3. PERL REVIEW 4. RAKU REVIEW 5. CHART 6. NEW MEMBERS 7. GUESTS 8. TASK #1: GCD Sum 9. TASK #2: Magical Matrix HEADLINES Finally we managed to get the interview with Andrew Shitov. We have four new members joining the team this week. W. Luis Mochan, Henry Wong, Miguel Prz and Aaron Smith. This week, we had 39 contributions by guests in 17 different languages.

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Meet The Champion: October 2020

Sunday, Nov 29, 2020 by Mohammad S Anwar Perl, Raku

Welcome to the monthly series Meet The Champion. Last month we spoke to Myoungjin Jeon, the winner of September 2020. Today we are talking to Andrew Shitov, the winner of October 2020 of The Weekly Challenge. I hope you are going to enjoy the interview. Mohammad: Tell us about your technical background? Andrew: Well, being a PhD in Physics and Mathematics, I used C++ a lot for computing things happening in nuclear collisions, which in the end turned me to work in the world of programming rather than science.

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RECAP - Perl Weekly Challenge - 087

Monday, Nov 23, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. STAR CONTRIBUTORS 3. CONTRIBUTION STATS 4. GUESTS 5. LANGUAGES 6. CENTURION CLUB 7. DAMIAN CONWAY’s CORNER 8. ANDREW SHITOV’s CORNER 9. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES It feels nice to see members showing interest in past challenges. One day when I am back to my normal routine, I will certainly try past challenges as well. Welcome back Alexander Karelas after a short break and thanks for sharing Perl solutions.

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The Weekly Challenge - 088

Monday, Nov 23, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. RECAP 3. PERL REVIEW 4. RAKU REVIEW 5. CHART 6. NEW MEMBERS 7. GUESTS 8. TASK #1: Array of Product 9. TASK #2: Spiral Matrix HEADLINES With the launch of The Weekly Challenge - 088, we have now completed 20 months. It has been fun and entertaining journey. It gave us the opportunity to meet the best brain across the globe. I never dreamt of knowing so many experts and be among their friends.

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RECAP - Perl Weekly Challenge - 086

Monday, Nov 16, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. STAR CONTRIBUTORS 3. CONTRIBUTION STATS 4. GUESTS 5. LANGUAGES 6. CENTURION CLUB 7. DAMIAN CONWAY’s CORNER 8. ANDREW SHITOV’s CORNER 9. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Welcome back Richard Park and thanks for sharing APL solutions. We all missed you. Roger Bell_West is one of few selected members of Team PWC who have been contributing in many different languages.

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Colin Crain › Perl Weekly Review #084

Tuesday, Nov 10, 2020 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 084 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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RECAP - Perl Weekly Challenge - 085

Monday, Nov 9, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. STAR CONTRIBUTORS 3. CONTRIBUTION STATS 4. GUESTS 5. LANGUAGES 6. CENTURION CLUB 7. DAMIAN CONWAY’s CORNER 8. ANDREW SHITOV’s CORNER 9. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Cheok-Yin Fung shared solutions to Week #84. Philip Hood shared C++ solutions for the first time. Stuart Little is on the loose as he shared solutions for Week #40, Week #41, Week #42, Week #60, Week #61, Week #63, Week #70, Week #71, Week #72, Week #73, Week #74, Week #75, Week #76, Week #77 and Week #78.

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The Weekly Challenge - 086

Monday, Nov 9, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. RECAP 3. PERL REVIEW 4. RAKU REVIEW 5. CHART 6. NEW MEMBERS 7. GUESTS 8. TASK #1: Pair Difference 9. TASK #2: Sudoku Puzzle HEADLINES Congratulations Team PWC for crossing the magic number 8th consecutive weeks. Well done and keep it up. This week, we had 30 contributions by guests in 12 different languages. I would like to THANK each and every guest contributors.

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The Weekly Challenge - 087

Monday, Nov 9, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. RECAP 3. PERL REVIEW 4. RAKU REVIEW 5. CHART 6. NEW MEMBERS 7. GUESTS 8. TASK #1: Longest Consecutive Sequence 9. TASK #2: Largest Rectangle HEADLINES Welcome Daniel Bowling and Tejas to the Team PWC. I am happy to see so many different solutions to the Sudoku task. I have never played the game before. With so many different solutions with great blog, it would be a good late night reading.

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Colin Crain › Perl Weekly Review #083

Tuesday, Nov 3, 2020 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 083 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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RECAP - Perl Weekly Challenge - 084

Monday, Nov 2, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. STAR CONTRIBUTORS 3. CONTRIBUTION STATS 4. GUESTS 5. LANGUAGES 6. CENTURION CLUB 7. DAMIAN CONWAY’s CORNER 8. ANDREW SHITOV’s CORNER 9. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Recent rise in the popularity of The Weekly Challenge make me very happy. With the addition of two new members, we now have 200 members. Newly joined member Samir Parikh also shared solutions to Week 001 and Week 002.

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The Weekly Challenge - 085

Monday, Nov 2, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. RECAP 3. PERL REVIEW 4. RAKU REVIEW 5. CHART 6. NEW MEMBERS 7. GUESTS 8. TASK #1: Triplet Sum 9. TASK #2: Power of Two Integers HEADLINES Congratulations Team PWC for crossing the magic number 7th consecutive weeks. Well done and keep it up. Today is the first Monday of the month and time to declare the Champion. With great pleasure, we declare, Andrew Shitov, as Champion of the Month.

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Colin Crain › Perl Weekly Review #082

Monday, Oct 26, 2020 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 082 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Why do we do these challenges? I suppose any answers to that would be as wide ranging and varied as the people who choose to join the team.

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RECAP - Perl Weekly Challenge - 083

Monday, Oct 26, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. STAR CONTRIBUTORS 3. CONTRIBUTION STATS 4. GUESTS 5. LANGUAGES 6. CENTURION CLUB 7. DAMIAN CONWAY’s CORNER 8. ANDREW SHITOV’s CORNER 9. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Kang-min Liu shared Python solutions for the first time, Task #1, Task #2. Dieter Dobbelaere shared blog first time for the weekly challenge. BLOG. STAR CONTRIBUTORS Following members shared solutions to both tasks in Perl and Raku as well as blogged about it.

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The Weekly Challenge - 084

Monday, Oct 26, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. RECAP 3. PERL REVIEW 4. RAKU REVIEW 5. CHART 6. NEW MEMBERS 7. GUESTS 8. TASK #1: Reverse Integer 9. TASK #2: Find Square HEADLINES Congratulations Team PWC for crossing the magic number 6th times in a row, first time ever since the start of the journey. Welcome PJ Durai and Stuart Little to the Team PWC. This week, we had 28 contributions by guests in 14 different languages.

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Colin Crain › Perl Weekly Review #081

Wednesday, Oct 21, 2020 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 081 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Or really, talk about pretty much anything that stands out as remarkable or noteworthy. Every week there is an enormous global collective effort made by the team, analyzing and creatively coding the submissions, and that effort deserves credit due.

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RECAP - Perl Weekly Challenge - 082

Monday, Oct 19, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. STAR CONTRIBUTORS 3. CONTRIBUTION STATS 4. GUESTS 5. LANGUAGES 6. CENTURION CLUB 7. DAMIAN CONWAY’s CORNER 8. ANDREW SHITOV’s CORNER 9. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Feng Chang made the contributions in bulk, for weeks 076, 078, 079, 080 and 081. Abigail shared couple of blogs for the first time. BLOG #1 BLOG #2. Kang-min Liu shared couple of blogs for the first time.

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The Weekly Challenge - 083

Monday, Oct 19, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. RECAP 3. PERL REVIEW 4. RAKU REVIEW 5. CHART 6. NEW MEMBERS 7. GUESTS 8. TASK #1: Words Length 9. TASK #2: Flip Array HEADLINES Congratulations Team PWC for crossing the magic number 5th times in a row, first time ever since the start of the journey. Checkout the interview with the Champion: Myoungjin Jeon. Welcome Philip Hood and Dieter Dobbelaere to the Team PWC.

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Meet The Champion: September 2020

Sunday, Oct 18, 2020 by Mohammad S Anwar Perl

Welcome to the monthly series Meet The Champion. Last month we spoke to Cheok-Yin Fung, the winner of August 2020. Today we are talking to Myoungjin Jeon, the winner of September 2020 of The Weekly Challenge. I hope you are going to enjoy the interview. Mohammad: Tell us about your technical background? Myoungjin: I remember that my first programming language was GW-BASIC. I was not good at it though.

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BLOG: The Weekly Challenge #081

Monday, Oct 12, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. YouTube WEEKLY 3. TASK #1: Common Base String 4. TASK #2: Frequency Sort HEADLINES It was the most difficult week for me. Why? Well, it is confirmed by my GP that I am going through Depression & Anxiety. So now you know why I didn’t do live video session in the recent weeks. I was even thinking on dropping the idea of participating in the weekly challenge for couple of weeks.

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Colin Crain › Perl Weekly Review #080

Monday, Oct 12, 2020 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 080 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Or really, talk about pretty much anything that stands out as remarkable or noteworthy. Every week there is an enormous global collective effort made by the team, analyzing and creatively coding the submissions, and that effort deserves credit due.

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RECAP - Perl Weekly Challenge - 081

Monday, Oct 12, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. STAR CONTRIBUTORS 3. CONTRIBUTION STATS 4. GUESTS 5. LANGUAGES 6. CENTURION CLUB 7. DAMIAN CONWAY’s CORNER 8. ANDREW SHITOV’s CORNER 9. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Andinus shared solution to Week #79 as well as blog. With the addition of Scala, we now have solutions in 33 different languages on top of Perl and Raku. Python and Haskell are the top 2 languages.

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The Weekly Challenge - 082

Monday, Oct 12, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. RECAP 3. PERL REVIEW 4. RAKU REVIEW 5. CHART 6. NEW MEMBERS 7. GUESTS 8. TASK #1: Common Factors 9. TASK #2: Interleave String HEADLINES Congratulations Team PWC for crossing the magic number 4th times in a row. Welcome Jose Luis and Frank Oosterhuis to the Team PWC. This week, we had 26 contributions by guests in 11 different languages. I would like to THANK each and every guest contributors.

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Colin Crain › Perl Weekly Review #079

Monday, Oct 5, 2020 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 079 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. With the large upswing of submissions from new and returning members, the format continues to evolve week to week.

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RECAP - Perl Weekly Challenge - 080

Monday, Oct 5, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. STAR CONTRIBUTORS 3. CONTRIBUTION STATS 4. GUESTS 5. LANGUAGES 6. CENTURION CLUB 7. DAMIAN CONWAY’s CORNER 8. ANDREW SHITOV’s CORNER 9. PERL SOLUTIONS 10. RAKU SOLUTIONS 11. PERL & RAKU SOLUTIONS HEADLINES Kang-min Liu introduced new language Kotlin this week. With this addition, we now have solutions in 32 languages other than Perl and Raku. Vinod Kumar K shared solutions to Week #001 and Week #002.

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BLOG: The Weekly Challenge #080

Sunday, Oct 4, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. YouTube WEEKLY 3. TASK #1: Smallest Positive Number 4. TASK #2: Count Candies HEADLINES This week, both tasks were comparatively easier than last week. I followed the rule, doing Perl first then translating the same into Raku. But while working on Raku, I got fresh ideas. I then went back to my Perl and re-worked the logic. One day, I would like to do Raku first then translate it into Perl.

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The Weekly Challenge - 081

Sunday, Oct 4, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. RECAP 3. PERL REVIEW 4. RAKU REVIEW 5. CHART 6. NEW MEMBERS 7. GUESTS 8. TASK #1: Common Base String 9. TASK #2: Frequency Sort HEADLINES Congratulations Team PWC for crossing the magic number 3rd times in a row, for the second time. Today is the first Monday of the month and time to declare the Champion. With great pleasure, I announce Myoungjin Jeon as the next Champion.

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Colin Crain › Perl Weekly Review #078

Monday, Sep 28, 2020 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 078 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Week over week the response to the Challenge has grown, which to all of us here is a wonderful thing.

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RECAP - Perl Weekly Challenge - 079

Monday, Sep 28, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. YouTube WEEKLY 3. STAR CONTRIBUTORS 4. CONTRIBUTION STATS 5. GUESTS 6. LANGUAGES 7. CENTURION CLUB 8. DAMIAN CONWAY’s CORNER 9. ANDREW SHITOV’s CORNER 10. PERL SOLUTIONS 11. RAKU SOLUTIONS 12. PERL & RAKU SOLUTIONS HEADLINES I noticed a positive change in the Team PWC this week after the blog by Dave Cross, we had members i.e. Daniel Mantovani, Myoungjin Jeon and Simon Green started blogging on dev.

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The Weekly Challenge - 080

Monday, Sep 28, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. RECAP 3. PERL REVIEW 4. RAKU REVIEW 5. CHART 6. NEW MEMBERS 7. GUESTS 8. TASK #1: Smallest Positive Number 9. TASK #2: Count Candies HEADLINES Congratulations Team PWC for crossing the magic number second week in a row, once again. Here is the list of 11 weeks when we crossed the magic number: 1) Week #001: 142 2) Week #002: 111 3) Week #030: 115 4) Week #033: 108 5) Week #048: 106 6) Week #072: 110 7) Week #073: 108 8) Week #074: 113 9) Week #075: 111 10) Week #078: 121 11) Week #079: 114 Let us welcome 4 new members, Kai Burgdorf, Pham Dao An, Rakulius and Ted Leahy in the Team PWC.

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BLOG: The Weekly Challenge #079

Sunday, Sep 27, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. YouTube WEEKLY 3. TASK #1: Count Set Bits 4. TASK #2: Trapped Rain Water HEADLINES I really enjoyed this week task. I had lots of fun working with the Trapped Rain Water task. This week, I was too busy with my $work, so couldn’t do either Swift coding or live video session. However I promise, I will catch up next week. YouTube WEEKLY Sorry, I couldn’t make video for this week tasks.

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Colin Crain › Perl Weekly Review #077

Monday, Sep 21, 2020 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 077 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Or really, talk about pretty much anything that stands out as remarkable or noteworthy. Every week there is an enormous global collective effort made by the team, analyzing and creatively coding the submissions, and that effort deserves credit due.

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RECAP - Perl Weekly Challenge - 078

Monday, Sep 21, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. YouTube WEEKLY 3. STAR CONTRIBUTORS 4. CONTRIBUTION STATS 5. GUESTS 6. LANGUAGES 7. CENTURION CLUB 8. DAMIAN CONWAY’s CORNER 9. ANDREW SHITOV’s CORNER 10. PERL SOLUTIONS 11. RAKU SOLUTIONS 12. PERL & RAKU SOLUTIONS HEADLINES Abigail shared solutions to Week #77 and Week #78 in Node. Tyler Wardhaugh shared solutions to Week #72 in Clojure. Myoungjin Jeon shared solutions to Week #64 in Haskell and Week #67 in Lisp.

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The Weekly Challenge - 079

Monday, Sep 21, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. RECAP 3. PERL REVIEW 4. RAKU REVIEW 5. CHART 6. NEW MEMBERS 7. GUESTS 8. TASK #1: Count Set Bits 9. TASK #2: Trapped Rain Water HEADLINES Congratulations Team PWC for crossing the magic number once again. This time we beat all previous record other than the launch week. So well done. Here is the list of 10 weeks when we crossed the magic number:

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BLOG: The Weekly Challenge #078

Sunday, Sep 20, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. YouTube WEEKLY 3. TASK #1: Leader Element 4. TASK #2: Left Rotation HEADLINES First thing first, I managed to do video session for both tasks this week. It is so satisfying when everything goes as per the plan. For the last couple of weeks, I could only do one video session. One day, I would like to video with PIP. At the moment, I am little uncomfortable showing my face in the video.

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Colin Crain › Perl Weekly Review #076

Monday, Sep 14, 2020 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 076 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Or really, talk about pretty much anything that stands out as remarkable or noteworthy. Every week there is an enormous global collective effort made by the team, analyzing and creatively coding the submissions, and that effort deserves credit due.

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RECAP - Perl Weekly Challenge - 077

Monday, Sep 14, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. YouTube WEEKLY 3. STAR CONTRIBUTORS 4. CONTRIBUTION STATS 5. GUESTS 6. LANGUAGES 7. CENTURION CLUB 8. DAMIAN CONWAY’s CORNER 9. ANDREW SHITOV’s CORNER 10. PERL SOLUTIONS 11. RAKU SOLUTIONS 12. PERL & RAKU SOLUTIONS HEADLINES Bob Lied shared solutions to Challenge #075 and Challenge #076. Dave Jacoby shared solutions to Challenge #076. Welcome back Feng Chang. Thanks for sharing solutions to the following weeks:

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The Weekly Challenge - 078

Monday, Sep 14, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. TASK #1: Leader Element 3. TASK #2: Left Rotation 4. RECAP 5. PERL REVIEW 6. RAKU REVIEW 7. CHART 8. NEW MEMBERS 9. GUESTS HEADLINES Last week we announced the winner of August 2020 and today we have the interview with Cheok-Yin Fung available for everyone. This week, we had 18 contributions by guests in 7 different languages. I would like to THANK each and every guest contributors.

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BLOG: The Weekly Challenge #077

Sunday, Sep 13, 2020 by Mohammad S Anwar Perl, Raku

HEADLINE I am back to my routine life but still not there fully. I am going to talk about my Perl and Raku solutions to both tasks to start with. Last week, I only talked about my Perl and Raku solutions to the task Prime Sum. This week also, I skipped Swift contributions like last week, sorry. I would blame my laziness. I am happy with my effort this week. It gives me immense pleasure when I do Raku implementation completely different from Perl.

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Meet The Champion: August 2020

Sunday, Sep 13, 2020 by Mohammad S Anwar Perl

Welcome to the monthly series Meet The Champion. Last month we spoke to Walt Mankowski, the winner of July 2020. Today we are talking to Cheok-Yin Fung, the winner of August 2020 of The Weekly Challenge. I hope you are going to enjoy the interview. Mohammad: Tell us about your technical background? Cheok-Yin: I formally learnt programming when I was in high school Form 4 (equiv Grade 10). At that time I learnt Pascal.

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Colin Crain › Perl Weekly Review #075

Monday, Sep 7, 2020 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 075 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Or really, talk about pretty much anything that stands out as remarkable or noteworthy. Every week there is an enormous global collective effort made by the team, analyzing and creatively coding the submissions, and that effort deserves credit due.

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RECAP - The Weekly Challenge - 076

Monday, Sep 7, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. YouTube WEEKLY 3. STAR CONTRIBUTORS 4. CONTRIBUTION STATS 5. GUESTS 6. LANGUAGES 7. CENTURION CLUB 8. DAMIAN CONWAY’s CORNER 9. ANDREW SHITOV’s CORNER 10. PERL SOLUTIONS 11. RAKU SOLUTIONS 12. PERL & RAKU SOLUTIONS HEADLINES We have a new member Andinus in the Team PWC. He shared solution to Prime Sum task in Perl. He even shared blog in the first week itself.

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The Weekly Challenge - 077

Monday, Sep 7, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. RECAP 3. PERL REVIEW 4. RAKU REVIEW 5. CHART 6. NEW MEMBERS 7. GUESTS 8. TASK #1: Fibonacci Sum 9. TASK #2: Lonely X HEADLINES Luca Ferrari, one of the most dedicated member of Team PWC shared this news with us in his last blog. On the very next monday, September 7th, I will be in hospital for a new surgery on my (last) working right eye.

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BLOG: The Weekly Challenge #076

Sunday, Sep 6, 2020 by Mohammad S Anwar Perl, Raku

HEADLINE Although I had finished the “Word Search” task a week before, still I didn’t have time to complete the “Prime Sum” task. After checking out others solution to the “Word Search” task, I was feeling low looking back my own solution. To recover from it, I delayed solving the “Prime Sum” task. At the same time, as a protest, I didn’t do Swift solutions for any of the tasks. After few days when I was feeling a little better, I decided to do at least one task better.

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Colin Crain › Perl Weekly Review #074

Monday, Aug 31, 2020 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 074 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Or really, talk about pretty much anything that stands out as remarkable or noteworthy. Every week there is an enormous global collective effort made by the team, analyzing and creatively coding the submissions, and that effort deserves credit due.

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RECAP - The Weekly Challenge - 075

Monday, Aug 31, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Welcome back Yet Ebreo after the break and thanks for sharing solutions to the Week 074 in Perl. Lets welcome, James Smith, after the break and thanks for sharing solutions in Perl. Also congratulations on joining the Top 50 contributors group, currently placed at #049. We have two more entries to the Top 50 and they are Niels van Dijke ranked #048 and Myoungjin Jeon, ranked at #050.

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The Weekly Challenge - 076

Monday, Aug 31, 2020 by Mohammad S Anwar Perl, Raku

TABLE OF CONTENTS 1. HEADLINES 2. RECAP 3. PERL REVIEW 4. RAKU REVIEW 5. CHART 6. NEW MEMBERS 7. GUESTS 8. TASK #1: Prime Sum 9. TASK #2: Word Search HEADLINES Team PWC, you did it once again. Congratulations to each and every member. We have now created a record of 4 consecutive weeks of 100+ contributions. I wasn’t hopeful of breaking at the end of Friday looking at the numbers to be honest.

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BLOG: The Weekly Challenge #075

Sunday, Aug 30, 2020 by Mohammad S Anwar Perl, Raku, Swift

HEADLINE The week #075 tasks turned out to be a lot trickier than expected. Generally Task #1 is meant for beginners only but this time it was not the case. It wasn’t my plan when I proposed the task. I thought couple of for-loops and job done. But when I actually started working on the task, I realised it wasn’t as simple as I thought initially. But the good thing is, I got to know about Dynamic Programming (DP).

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RECAP - Perl Weekly Challenge - 074

Monday, Aug 24, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Lets welcome new member Nuno Vieira from Braga, Portugal before we discuss anything. I remember last Monday as soon as I made the weekly challenge public, within minutes literally, I had the first contributions. Guess who? Mark Anderson, one of the member of elite Early Bird Club. Do you also want to join the club? It is very simple, just drop us a line at perlweeklychallenge@yahoo.com. I wanted to be the first contributor as I had solved both the tasks in Perl, Raku and Swift already.

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The Weekly Challenge - 075

Monday, Aug 24, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Well done Team PWC, we did it. It took us 74 weeks to break the record of 2 consecutive weeks of 100+ contributions. Just to remind you it was right at the start, Week #001 and Week #002. In between we did manage to cross the magical number but never once crossed 3 in a row. 1) Week #001: 142 2) Week #002: 109 3) Week #030: 115 4) Week #033: 108 5) Week #046: 106 6) Week #072: 109 7) Week #073: 108 8) Week #074: 112 Having done this now, we should now aim to break the record of maximum contributions in a week.

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BLOG: The Weekly Challenge #074

Sunday, Aug 23, 2020 by Mohammad S Anwar Perl, Raku, Swift

HEADLINE Ever since I started doing Swift, I find myself too busy again with my weekly video sessions on top of all. I need to re-visit my time management chart, may be? Having said that, I get excited by the doing task in a new language. I wanted to do it in Java to refresh my memory. But couldn’t find time for it as I am editing the next week Perl Weekly newsletter also.

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Colin Crain › Perl Weekly Review #073

Sunday, Aug 23, 2020 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 073 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Or really, talk about pretty much anything that stands out as remarkable or noteworthy. Every week there is an enormous global collective effort made by the team, analyzing and creatively coding the submissions, and that effort deserves credit due.

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Colin Crain › Perl Weekly Review #072

Monday, Aug 17, 2020 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 072 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Or really, talk about pretty much anything that stands out as remarkable or noteworthy. Every week there is an enormous global collective effort made by the team, analyzing and creatively coding the submissions, and that effort deserves credit due.

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Perl Weekly Challenge - 074

Monday, Aug 17, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES The week #072 was full of pleasant surprises, one of them was getting past 100 contributions. The whole Team PWC needs a big round of applause. Having set the target so high, the following week #073 was under pressure to perform. Honestly speaking, it was me who wanted to get somewhere close to the peak if not beat the previous high. To keep the followers of @PerlWChallenge up to date, I kept sharing the progress during the week.

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RECAP - Perl Weekly Challenge - 073

Monday, Aug 17, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Welcome back Mano Chandar. Although he joined the Team PWC long time ago but he shared his first contributions in Perl this week. I am not sure if you noticed, in the recent weeks, the language list is growing very rapidly. As of today, we have received solutions in 24 languages in addition to Perl and Raku. If you remember, it all started in the week #018 by a respected guest Orestis Zekai when he shared his solutions in Python.

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BLOG: The Weekly Challenge #073

Friday, Aug 14, 2020 by Mohammad S Anwar Perl, Raku, Swift

HEADLINE Happy Independence Day to all my fellow Indians This week tasks are once again fun and challenging. Keeping the balance is very difficult, I must admit. but I am trying … For the first time, I have joined the private Early Bird Club and taking the advantage of doing the challenge before the launch. I am not sure, if you noticed, this I shared by solutions before lunch time on day one.

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Colin Crain › Perl Weekly Review #071

Sunday, Aug 9, 2020 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 071 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Or really, talk about pretty much anything that stands out as remarkable or noteworthy. Every week there is an enormous global collective effort made by the team, analyzing and creatively coding the submissions, and that effort deserves credit due.

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Meet The Champion: July 2020

Sunday, Aug 9, 2020 by Mohammad S Anwar Perl

Welcome to the monthly series “Meet The Champion”. Today we are talking to Walt Mankowski, the winner of July 2020 of “Perl Weekly Challenge”. I hope you are going to enjoy the interview. Mohammad: Tell us about your technical background? Walt: Well, it’s pretty varied. My first real programming job was working for the Philadelphia Stock Exchange in the late 1980s. I spent most of the 1990s working at a cable home shopping station called QVC.

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Perl Weekly Challenge - 073

Sunday, Aug 9, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES What a week it has been, we crossed the 100 mark once again !!! Congratulations, Team PWC. Last time we crossed the magic number was in the Week #046. Overall we did it 6 times. 1) Week #001: 142 2) Week #002: 109 3) Week #030: 115 4) Week #033: 108 5) Week #046: 106 6) Week #072: 108 It is also the best week for contributions in guest languages.

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RECAP - Perl Weekly Challenge - 072

Sunday, Aug 9, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Welcome back Adam Russell after short break. Thanks for sharing not just one but two blogs. I would also like to thank Lance Wicks for the regular live session. Scimon Proctor also wrote two blogs, one for each task. Thanks for your support and encouragement. For some strange reason, I didn’t see any pull request from Dave Jacoby this week. Luckily I saw a tweet from him talking about his blog for the weekly challenge.

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BLOG: The Weekly Challenge #072

Wednesday, Aug 5, 2020 by Mohammad S Anwar Perl, Raku, Swift

HEADLINE No Linked List related task this week? I am glad, this week focus was more Array/List related. Technical speaking Array and List aren’t the same in Perl. I must admit until I read the article by brian d foy, I thought they were the same. As the famous saying, you learn something new every day. Both the tasks, this week were not terribly difficult. I noticed many members of Team PWC attempted other languages because they finished the tasks in no time.

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Perl Weekly Challenge - 072

Monday, Aug 3, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Today is the first Monday of the August 2020 and it is time to announce the Champion of the Month. With great pleasure, we announce the Champion of the Month, Walt Mankowski, currently ranked #044 with score of 58. He joined the Team PWC in the Week #013. As of today, he has contributed Perl (29), C (6) and Python (12). Andrew Shitov is on a mission it seems, he has done not one but two weeks Live Raku Reviews.

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RECAP - Perl Weekly Challenge - 071

Monday, Aug 3, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Welcome back Ben Davies after short break. Thanks for sharing Raku solutions. Jaldhar H. Vyas shared the solutions to the Perl Weekly Challenge - 058. It shows the dedication that he has towards the weekly challenge. Thanks Jaldhar for your support and encouragement. I am not sure, if you have read the blog by Dave Jacoby where he mentioned the comment by Walt Mankowski where he encouraged Dave to do the Trim Linked List as a Singly Linked List purely.

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BLOG: The Weekly Challenge #071

Sunday, Aug 2, 2020 by Mohammad S Anwar Perl, Raku

HEADLINE With another Linked List related task, I am now enjoying it a lot. It also gives me the opportunity to work with Class in Raku. Learning Raku has changed my thinking a big way. The developer inside me is more organised than before. Also doing regular weekly challenge made me think from unit test point of view every time I come up with a solution. In fact, it dictates the design of my solution.

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Colin Crain › Perl Weekly Review #070

Sunday, Aug 2, 2020 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 070 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code created. Or really, talk about pretty much anything that stands out as remarkable or noteworthy. Every week there is an enormous global collective effort made by the team, analyzing and creatively coding the submissions, and that effort deserves credit due.

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Colin Crain › Perl Weekly Review #069

Monday, Jul 27, 2020 by Colin Crain perl

( …continues from previous week. ) Welcome to the Perl review for Week 069 of the Weekly Challenge! Here we will take the time to discuss the submissions offered by the team, factor out the common methodologies that came up in those solutions, and highlight some of the unique approaches and unusual code we find. Or really, talk about pretty much anything that stands out as remarkable or noteworthy. Every week there is an enormous global collective effort made by the team, analyzing and creatively coding the submissions, and that effort deserves credit due.

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Perl Weekly Challenge - 071

Monday, Jul 27, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Finally the wait is over, we found volunteer for Raku Reviews. Any guess? Andrew Shitov joined the team of Raku Reviewers. The best part is, he is doing Live Video Reviews, which is even more fun. I watched all his reviews so far, start to end. There are plenty to learn from just watching him review Raku solutions. He has already done for Week #066 and Week #069.

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RECAP - Perl Weekly Challenge - 070

Monday, Jul 27, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES This week we introduced 2 new languages i.e. Lisp by Cheok-Yin Fung and Swift by me. I added 5 solutions, all Task #1 from five different weekly challenges. Perl Weekly Challenge - 070 Perl Weekly Challenge - 069 Perl Weekly Challenge - 068 Perl Weekly Challenge - 066 Perl Weekly Challenge - 065 Python has finally reached the magic figure and became the first language to cross 100 mark.

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BLOG: The Weekly Challenge #070

Sunday, Jul 26, 2020 by Mohammad S Anwar Perl, Raku

HEADLINE Before I talk about my contribution this week, I would like to talk about my encounter with Swift programming language recently. For the first time, I felt confident that I can share my Swift solution to the Character Swapping task of the Perl Weekly Challenge - 070. Why Task #1 only? Well, you guessed it correctly because it is meant for the beginners. With the submission of my first contribution in Guest Language, I now find myself in the Guest List as you must have seen in RECAPS every week.

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Perl Weekly Challenge - 070

Monday, Jul 20, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Colin Crain has been helping with Perl reviews since Week #065. I would like to thank him for all the hard work. I liked the new layout he came up for the last review. It is different from others. I am not sure about others but I always look forward to review every week. We are still looking for helping hands for Raku reviews. Please let us know perlweeklychallenge@yahoo.

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RECAP - Perl Weekly Challenge - 069

Monday, Jul 20, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Welcome back Rage311 after the break. I hope you stay longer this time. Walt Mankowski surprised me this week by sharing solutions in C and Python. Thanks to him, C is the new language introduced to us. I would also like to thank him for taking Python contributions closer to the magic number. Andrew Shitov joined the gang and shared his first C++. Apart from Andrew, we have few others contributors who also contributed in C++, i.

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BLOG: The Weekly Challenge #069

Sunday, Jul 19, 2020 by Mohammad S Anwar Perl, Raku

HEADLINE The Task #1 of Perl Weekly Challenge - 069 raised a very interesting question i.e. is 1 strobogrammatic number? So far, I got mixed response some says yes and some not. My first thought was Yes, it is but later changed my mind. It is controversial and I don’t want loose the focus on the task itself. Please remember the objective is to have fun and not to get into controversial domain.

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Colin Crain › Perl Weekly Review #068

Sunday, Jul 19, 2020 by Colin Crain perl

Continues from previous week. Welcome to the Perl review for Week 068 of the Weekly Challenge! For a quick overview, go through the original tasks and recap of the weekly challenge. Getting in Touch Email › Email me (Colin) with any feedback about this review. I’m curious what you all think of it. GitHub › Submit a pull request for any issues you may find with this page. Twitter › Join the discussion on Twitter!

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Colin Crain › Perl Weekly Review #067

Monday, Jul 13, 2020 by Colin Crain perl

Continues from previous week. Welcome to the Perl review for Week 067 of the Weekly Challenge! For a quick overview, go through the original tasks and recap of the weekly challenge. Getting in Touch Email › Email me (Colin) with any feedback about this review. GitHub › Submit a pull request for any issues you may find with this page. Twitter › Join the discussion on Twitter! We’d greatly appreciate any feedback you’d like to give.

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Perl Weekly Challenge - 069

Monday, Jul 13, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES With three members joining Team PWC, we now have 173 members. I welcome all of them with open arms. I would like to mention one member explicitly Myoungjin Jeon, why? He is someone who did Perl long time ago and currently a Chef by profession. What impressed me the most about him is that he never let his love for Perl die. I hope he finds the weekly challenge interesting to keep him going.

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RECAP - Perl Weekly Challenge - 068

Monday, Jul 13, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Two of the three members who joined the Team PWC last week, shared solutions to the “Perl Weekly Challenge - 068”. When I requested them for a brief introduction, most of them came back with Perl background. But then Myoungjin Jeon surprised me with solutions in Raku as well. I came across one of his blog where he mentioned about his work on creating combinations in Perl in the year 2013.

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BLOG: The Weekly Challenge #068

Sunday, Jul 12, 2020 by Mohammad S Anwar Perl, Raku

HEADLINE The Week #068 is my 23rd week in a row participating the weekly challenge. For the first time, I created a package to deal with the “Reorder List” task. It really helped me in thinking straight when dealing with linked list. With the help my favourite CPAN module Moo, creating class is like piece of cake as shown below. package Node; use Moo; has v => (is => 'rw'); has c => (is => 'rw'); sub show_link { my ($self) = @_; my $head = $self; my @v = (); while ($head->c) { push @v, $head->v; $head = $head->c; } push @v, $head->v; return sprintf("%s", join ' -> ', @v); } I will talk more in detail later down below.

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Perl Weekly Challenge - 068

Monday, Jul 6, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Today is the first Monday of the July 2020 and you guessed it correctly. It is time to announce the Champion of the Month. With great pleasure, we announce the Champion of last month, Mark Anderson, currently ranked #027 with score of 122. He joined the Team PWC in the Week #018. As of today, he has contributed Perl (19) and Raku (42). After a long gap, we have Perl and Raku reviews together in one week.

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RECAP - Perl Weekly Challenge - 067

Monday, Jul 6, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Andrew Shitov joined the Team PWC in the Week #065. Last week he shared link to a page dedicated to his recent and past solutions to the weekly challenge. I found it extremely useful to the rest of us. Therefore decided to have it exclusive section in the weekly RECAP blog. Please do checkout his work. Welcome back Chenyf. After a long break, we received his contributions in Raku.

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Colin Crain › Perl Weekly Review #066

Sunday, Jul 5, 2020 by Colin Crain perl

Continues from previous week. Welcome to the Perl review for Week 066 of the Weekly Challenge! For a quick overview, go through the original tasks and recap of the weekly challenge. Getting in Touch Email › Email me (Colin) with any feedback about this review. GitHub › Submit a pull request for any issues you may find with this page. Twitter › Join the discussion on Twitter! We’d greatly appreciate any feedback you’d like to give.

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BLOG: The Weekly Challenge #067

Saturday, Jul 4, 2020 by Mohammad S Anwar Perl, Raku

HEADLINE This week both tasks had one thing in common i.e. pairing two or more list. In the past, I have taken the help from CPAN module Algorithm::Combinatorics for such tasks. However this time, I wanted to get my hand dirty and came up with the following: # generate all possible combinations my @combinations = (''); foreach my $members (@data) { @combinations = map { my $member = $_; map $member.

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BLOG: The Weekly Challenge #066

Monday, Jun 29, 2020 by Mohammad S Anwar Perl, Raku

HEADLINE The much awaited event, **Conference in the Cloud” took most of my free time. Having said that I still managed to do Live Coding YouTube videosfor Divide Integers and Power Integers. I really enjoyed both tasks, specially Power Integers. It didn’t take long to solve both tasks. I was able to get it done by midweek. But for YouTube video, I had to wait until the conference was over. Thanks to the Chief Editor of Perl Weekly newletter editorial note, I now have 67 subscribers to my YouTube Channel.

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Colin Crain › Perl Weekly Review #065

Monday, Jun 29, 2020 by Colin Crain perl

Welcome to the Perl review for Week 065 of the Weekly Challenge! For a quick overview, go through the original tasks and recap of the weekly challenge. Getting in Touch GitHub › Submit a pull request for any issues you may find with this page. Twitter › Join the discussion on Twitter! We’d greatly appreciate any feedback you’d like to give. BLOGS TASK #1 › Digits Sum You are given two positive numbers $N and $S.

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Perl Weekly Challenge - 067

Monday, Jun 29, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES The highlight of last week was mostly the much awaited event “Conference in the Cloud”. I must admit, I enjoyed every bit. It was nice to see so many familiar names from Team PWC in the audience. Among many talks, I was really happy to watch Damian Conway live for the first time. Colin Crain final joined the team of reviewers and submitted first Perl Review. Please do share your comments and suggestions.

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RECAP - Perl Weekly Challenge - 066

Monday, Jun 29, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Welcome back Walt Mankowski and thanks for sharing your contributions. Also thanks for sharing Python solutions. Thanks Andrew Shitov solving past challenges and blogging about it as well. Python is the most popular language among the Team PWC after Perl and Raku. We now have 10 contributors for Python. 1) Lubos Kolouch: Python (25). 2) User Person: Python (21). 3) Orestis Zekai: Python (16). 4) Burkhard Nickels: Python (8).

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Perl Weekly Challenge - 066

Monday, Jun 22, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES The week #065 started on a happy note when I received the contribution by Andrew Shitov. He doesn’t need an introduction, does he? He even blogged about his contribution. On a serious note, I got the sense that most of the Team PWC found the task Palindrome Partition very confusing. I must admit, I also realised when I solved the task myself. I noticed there are more solutions than what I thought initially.

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RECAP - Perl Weekly Challenge - 065

Monday, Jun 22, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES I noticed Yet Ebreo catching up past challenges. In the series, he shared Week #062 and Week #063. It is always nice to see members taking interest in solving past challenges. I would like to encourage anyone who joined us recently, please do share your solutions to the past challenges. If you missed the deadline to submit your solutions, please do share anyway. And why not blog about it as well, if you haven’t done so before.

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BLOG: The Weekly Challenge #065

Sunday, Jun 21, 2020 by Mohammad S Anwar Perl, Raku

HEADLINE Having missed the blog last week, I wanted to make sure it doesn’t happen again. I did catch up the last week blog this week. How did I get time this week around? Well, I delayed Live Coding session for Perl and Raku until Sunday. As of now, I have done 2 videos, one each for both tasks in Perl. I am planning to do one more later in the evening in Raku just for “Digits Sum” task.

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BLOG: The Weekly Challenge #064

Saturday, Jun 20, 2020 by Mohammad S Anwar Perl, Raku

HEADLINE This weekly blog is coming a week later than normal. Why? Last week I tried Live Coding for the first time. It was scary but enjoyable experience. It took more time than the blog. Having said that I didn’t want to stop blogging about my solutions. So here you go, I am sharing my solutions with you. Just for record, please find below links to the Live Coding videos.

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Perl Weekly Challenge - 065

Monday, Jun 15, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Few days ago, Colin Crain, offered to do Perl review of the past challenges. A big THANK YOU from all of us. Soon we will have the fun of reading reviews. I am still looking for Raku, just a gentle reminder. It would be nice, if both kickstart together. I have been hooked into YouTube video of live coding by Richard Park. It was Richard who first started sharing his YouTube video of live coding.

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RECAP - Perl Weekly Challenge - 064

Monday, Jun 15, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Not sure about others but I have noticed E. Choroba is on a mission to improve his past solutions. Square with 5 distinct digits Invert Tree Find Numbers Nothing comes FREE, the above improvements is keeping E. Choroba too busy to do weekly blog. We are missing them very badly. Hopefully it will start again very soon. Do you remember, Jaldhar H. Vyas? He was missing from the scene for sometime but he is back in action now, back to back 2 weeks.

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Perl Weekly Challenge - 064

Monday, Jun 8, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Two recent tragedies really upset me the most, first the killing of George Floyd and second the killing of pregnant elephant in India. All Life Matters, including Black. I try to keep my political views to select few and avoid sharing on social media. I hope I am not crossing the lines here. The Week #062 was the dullest week ever earlier but thanks to all Team PWC members, it is no longer the least contributions week.

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RECAP - Perl Weekly Challenge - 063

Monday, Jun 8, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Welcome back Jaldhar H. Vyas, we missed you. For the first time ever, I noticed E. Choroba missed a week i.e #062. However, he made it up and shared the solution to the Sort Email Addresses. To my surprise, he even updated his solution to the task Longest Common Substring of Perl Weekly Challenge - 018. It shows his commitment to continuous improvement. Thanks to Richard Park contributions, the solutions in APL (18) is moving up in the rank #003, only behind Python (87) and C++ (22).

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Meet The Champion: May 2020

Saturday, Jun 6, 2020 by Mohammad S Anwar Perl, Raku

Welcome to the monthly series “Meet The Champion”. Last month we spoke to Luca Ferarri, the winner of April 2020. Today we are talking to Shahed Nooshmand, the winner of May 2020 of “Perl Weekly Challenge”. I hope you are going to enjoy the interview. Mohammad: Tell us about your technical background? Shahed: I have none. I’m a Computer Science student. This is my second semester, and barely — considering you-know-what.

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BLOG: The Weekly Challenge #063

Wednesday, Jun 3, 2020 by Mohammad S Anwar Perl, Raku

HEADLINE After the most difficult week (Week #062), it was very satisfying. I found both the tasks this week (Week #063) fun and challenging. The best part was that I could do both tasks in an hour, which is rare. I liked the “Rotate String” task very much. Thanks to Ryan, we already had test cases handy for the “Last Word” task. I will talk about each in detail down below.

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Perl Weekly Challenge - 063

Monday, Jun 1, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Today is the first Monday of the June 2020 and you guessed it correctly. It is time to announce the Champion of the Month. With great pleasure, we announce the Champion of last month, Shahed Nooshmand, currently ranked #042 with score of 62. He joined the Team PWC in the Week #053 and has never missed a week since. As of today, he has contributed Perl (1), Raku (20) and Blog (10).

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RECAP - Perl Weekly Challenge - 062

Monday, Jun 1, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Welcome back Simon Miner after a short break. We hope you stay longer this time and thanks for sharing your solution with us. Thanks Jared Martin for sharing solutions to the past week Perl Weekly Challenge - 61 as well. We would also like to thank all the Team PWC members who nailed the N Queens task. 1) Arne Sommer: [RAKU] 2) Cheok-Yin Fung: [PERL] 3) Colin Crain: [PERL] 4) Javier Luque: [PERL] and [RAKU] 5) Luca Ferrari: [RAKU] 6) Niels van Dijke: [PERL] 7) Roger Bell_West: [PERL] 8) Saif Ahmed: [PERL] 9) Sangeet Kar: [RAKU] and [PYTHON] 10) Shahed Nooshmand: [RAKU] Last but not the least, we leave you with this YouTube Video shared by Richard Park.

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BLOG: The Weekly Challenge #062

Saturday, May 30, 2020 by Mohammad S Anwar Perl, Raku

HEADLINE Once again, Neil Bowers, came up with another exciting task for all Team PWC members. Like always, it was fun task. Thanks to Ryan for providng sample data and expected result based on the definition of the task. Half the job done already. The only thing left for the us, is get on with the job. I noticed Raku needed slightly different approach then the Perl. It could be I am doing something very badly.

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Perl Weekly Challenge - 062

Monday, May 25, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Happy Idd to all Team PWC members. It was the first Idd celebration when we couldn’t go to the mosque for special prayer. Life is no longer same even after so many weeks on lockdown. It appears we have to start adjusting to the new rules. From next week, I will have new routine to follow as Ramadan is over. Working hours is going to be back to normal.

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RECAP - Perl Weekly Challenge - 061

Monday, May 25, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES We all know, Perl Weekly Challenge, primarily focus on Perl and Raku. However, in recent weeks, I noticed Team PWC members actively sharing solutions in other guest languages. As of today, we have received solutions in 16 guest languages, Python being the most popular language. There is still scope for more guest languages. If you haven’t tried anything so far then why not give it a try. Newly joined member Sangeet Kar shared his first Python solutions.

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BLOG: The Weekly Challenge #061

Tuesday, May 19, 2020 by Mohammad S Anwar Perl, Raku

HEADLINE At first, I thought Product SubArray is easy task. Therefore I went public categorised as Task #1. My definition of easy task is you just start coding without doing any ground work. However when I started coding, I had to take a pause and do processing in my head befoore coding. So then as per my definition, Product SubArray no longer consider as an easy task. After finishing the task in no time once I understood the flow, it turned out to be clean solution.

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Perl Weekly Challenge - 061

Monday, May 18, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES I never miss the opportunity of celebration, no matter how small the occassion is. My form of celebration is sharing the achievements with the community in general. If you remember, I wrote a blog when we completed 3 months of weekly challenge. Then again when we completed 6 months. So why no celebration at the end of first anniversary? Certainly it was the biggest moments for all of us associated with Perl Weekly Challenge or rather The Weekly Challenge.

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RECAP - Perl Weekly Challenge - 060

Sunday, May 17, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Couple of months ago, on the request of one of the Team PWC member, Wanderdoc, we created Early Bird Club. So what is it all about? The club members get the first glimpse of upcoming challenges. How can anyone join the club? Just drop us a line with your intention to perlweeklychallenge@yahoo.com. I always try to give the club members full weekend i.e. Saturday and Sunday to play with the upcoming challenges before others get their hand the following Monday morning.

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BLOG: The Weekly Challenge #060

Saturday, May 16, 2020 by Mohammad S Anwar Perl, Raku

HEADLINE I am not sure about you guys but I found writing blog is very nice feeling. I get nice ideas to clean up the code. This week, I even found a bug that even unit test couldn’t catch. I would rather not share it, quite embarassing. The bug was in my Perl solutions to the “Find Numbers” task. My git commit tree might disclose it, if you really want to know.

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Perl Weekly Challenge - 060

Monday, May 11, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Last week, we had the pleasure to interview our Champion of the Perl Weekly Challenge, Luca Ferrari. Please check out the full interview. I noticed Team PWC members making constant noise, in a positive way, with regular blogs. To me personally, by reading blog, you not only get the story behind each solutions but the also the journey itself. Keep blogging and sharing knowledge. I would like to thank Team PWC member Richard Park for introducing the amazing language APL.

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RECAP - Perl Weekly Challenge - 059

Monday, May 11, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Last week, 3 new members joined the Team PWC, namely Max Kossek, Sangeet Kar and Shawak. We welcome all of them and hope they would have as much fun as we have had so far. I would like to mention one thing about Max Kossek, in his first week itself, he solved past four weeks solutions. Great attempt. Keep it up, Max. Another pleasant surprise from last week was, one of the earliest member of the team, Colin Crain started blogging about his work.

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BLOG: The Weekly Challenge #059

Sunday, May 10, 2020 by Mohammad S Anwar Perl, Raku

HEADLINE This week, I changed the format of my weekly blog slightly. Why? Well, I wanted to keep the Perl and Raku solutions next to each other so that it is easier for reader (me, mostly) to see the difference. It gives me immense pleasure to see the end result when I am done translating Perl solutions into Raku. It looks lot cleaner and precise. The only thing it is behind is performance when I do comparison.

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Meet The Champion: April 2020

Saturday, May 9, 2020 by Mohammad S Anwar Perl, Raku

Welcome to the monthly series “Meet The Champion”. Last month we spoke to Alicia Bielsa, the winner of March 2020. Today we are talking to Luca Ferrari, the winner of April 2020 of “Perl Weekly Challenge”. I hope you are going to enjoy the interview. Mohammad: Tell us about your technical background? Luca: I was interested in computers since the Commodore 64 era, but at that time I was six years old and therefore my computer skills were limited to loading and playing games.

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Perl Weekly Challenge - 059

Monday, May 4, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Today is the first Monday of the month and time to declare the winner of last month Champion of the Weekly Challenge. With great pleasure we announce Luca Ferrari from Italy as the winner of April 2020. Congratulations Luca. He has been a valuable member of the Team PWC. Looking at his contributions below, he always dealt with Raku and regularly blogged as well. He is currently ranked #026 in the Centurion Club.

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RECAP - Perl Weekly Challenge - 058

Monday, May 4, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Arne Sommer was on the loose last week. He contributed solutions in Bash, Perl, PHP, Python and Ruby on top of his regulars in Raku. Every now and then I get such surprises by the member of Team PWC. We are always greatful to each and every member for their support and encouragement. Having gained little confidence in Raku in the past few weeks, I attempted to solve past challenges in Raku.

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BLOG: The Weekly Challenge #058

Sunday, May 3, 2020 by Mohammad S Anwar Perl, Raku

HEADLINE This week, I struggled with both the task, to be honest. Dealing with alpha part of the version was really pain in the neck. Every time, I struggle with any task, I follow the college days course of action i.e. pick a pend and paper. I start dribbling the thought process, it really helps in getting the idea out on the paper. Once the rough draft is ready, it is time to face the unit test trial.

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Perl Weekly Challenge - 058

Monday, Apr 27, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Last Friday was the first day of Ramadan in the United Kingdom. Because of the fasting during the day, I try to preserve my energy and use it when necessary. You will probably notice delay in acceptance of your contributions during this month. I may not be able to respond to your email as promptly as before. Please bear with me in this holy month. I would like to take this opportunity to thank all the regulars who have been blogging about their solutions and all those new members who are actively blogging straight away.

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Perl Weekly Challenge - 059

Monday, Apr 27, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Last but not the least, I woud like to thank each and every member for their support and encouragement. RECAP Quick recap of the “Perl Weekly Challenge - 058” by Mohammad S Anwar. PERL REVIEW If you missed any past reviews then please checkout the collection. RAKU REVIEW Please checkout Raku solutions review of the “Perl Weekly Challenge - 054” by Laurent Rosenfeld. If you missed any past reviews then please checkout the collection.

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RECAP - Perl Weekly Challenge - 057

Monday, Apr 27, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES In the series of clearing up past challenges, this time Roger Bell_West shared the blog for Perl Weekly Challenge - 055. Last week, I saw Ruben Westerberg did double job as he missed the target for “Perl Weekly Challenge - 056”. He has never missed a week starting from Week #001. | Perl Weekly Challenge - 001 | Perl Weekly Challenge - 002 | Perl Weekly Challenge - 003 | Perl Weekly Challenge - 004 | Perl Weekly Challenge - 005 | | Perl Weekly Challenge - 006 | Perl Weekly Challenge - 007 | Perl Weekly Challenge - 008 | Perl Weekly Challenge - 009 | Perl Weekly Challenge - 010 | | Perl Weekly Challenge - 011 | Perl Weekly Challenge - 012 | Perl Weekly Challenge - 013 | Perl Weekly Challenge - 014 | Perl Weekly Challenge - 015 | | Perl Weekly Challenge - 016 | Perl Weekly Challenge - 017 | Perl Weekly Challenge - 018 | Perl Weekly Challenge - 019 | Perl Weekly Challenge - 020 | | Perl Weekly Challenge - 021 | Perl Weekly Challenge - 022 | Perl Weekly Challenge - 023 | Perl Weekly Challenge - 024 | Perl Weekly Challenge - 025 | | Perl Weekly Challenge - 026 | Perl Weekly Challenge - 027 | Perl Weekly Challenge - 028 | Perl Weekly Challenge - 029 | Perl Weekly Challenge - 030 | | Perl Weekly Challenge - 031 | Perl Weekly Challenge - 032 | Perl Weekly Challenge - 033 | Perl Weekly Challenge - 034 | Perl Weekly Challenge - 035 | | Perl Weekly Challenge - 036 | Perl Weekly Challenge - 037 | Perl Weekly Challenge - 038 | Perl Weekly Challenge - 039 | Perl Weekly Challenge - 040 | | Perl Weekly Challenge - 041 | Perl Weekly Challenge - 042 | Perl Weekly Challenge - 043 | Perl Weekly Challenge - 044 | Perl Weekly Challenge - 045 | | Perl Weekly Challenge - 046 | Perl Weekly Challenge - 047 | Perl Weekly Challenge - 048 | Perl Weekly Challenge - 049 | Perl Weekly Challenge - 050 | | Perl Weekly Challenge - 051 | Perl Weekly Challenge - 052 | Perl Weekly Challenge - 053 | Perl Weekly Challenge - 054 | Perl Weekly Challenge - 055 | | Perl Weekly Challenge - 056 | Perl Weekly Challenge - 057 | GUESTS REPORT CARD 1) Ulrich Rieke: C++ (12), Haskell (14).

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BLOG: The Weekly Challenge #057

Sunday, Apr 26, 2020 by Mohammad S Anwar Perl, Raku

HEADLINE Of the two tasks, my favourite was Shortest Unique Prefix. I must confess I have never done this before. It was fun solving though. I enjoyed it thoroughly. As always, Raku solution looks more elegant, in my hunble opinion. With every passing week, I learn something new in Raku and get to practice what I learnt so far. The weekly challenge is giving me an opportunity to explore the nitty gritty of Raku.

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Perl Weekly Challenge - 057

Monday, Apr 20, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Last week, we had the opportunity to speak to the Perl Weekly Champion of last month, Alicia Bielsa. I would like to share the relationship between Perl Weekly Challenge and Perl Weekly Newsletter. I have been associated with Perl Weekly Newsletter since May 2018 as Co-Editor. The name Perl Weekly Challenge was naturally inspired by the Perl Weekly Newsletter. The Chief Editor, Gabor Szabo has been a big supporter of Perl Weekly Challenge.

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RECAP - Perl Weekly Challenge - 056

Monday, Apr 20, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Laurent Rosenfeld shared a very special blog where he revisited his work on the Collatz Sequence task of the Perl Weekly Challenge - 054. He also mentioned in his blog about an interesting discussion among the Perl Mongers. I noticed, Roger Bell_West is on the loose. He has been getting the blogs of past challenge done. Last week we had blogs for Perl Weekly Challenge - 052 and Perl Weekly Challenge - 053.

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BLOG: The Weekly Challenge #056

Sunday, Apr 19, 2020 by Mohammad S Anwar Perl, Raku

Before I say anything about my contributions, I would like to share my sweet encounter with Raku. Last week while working on the task Flip Binary using Raku, I was struggling to figure out all the binary strings with maximum 1s. I had the results in a Hash where key was the binary string and value was the total count of 1s in it. The idea was to sort the Hash by values first then sort by keys.

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Meet The Champion: March 2020

Monday, Apr 13, 2020 by Mohammad S Anwar Perl, Raku

Welcome to the monthly series “Meet The Champion”. Last month we spoke to Saif Ahmed, the winner of February 2020. Today we are talking to Alicia Bielsa, the winner of March 2020 of “Perl Weekly Challenge”. I hope you are going to enjoy the interview. Mohammad: Tell us about your technical background? Alicia: I studied Humanities and did not start learning about computers until I was in my thirties.

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Perl Weekly Challenge - 056

Monday, Apr 13, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES As you all know how COVID-19 has affected our daily life and in this difficult time we should be grateful to all Key Workers working round the clock to save us from the deadly virus. We are proud to have one such key member, Saif Ahmed, in our team. We salute him and everyone for their dedication and hardship. I am amazed that Saif still manages to find time for the weekly challenges.

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RECAP - Perl Weekly Challenge - 055

Monday, Apr 13, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES We have a new member, Jared Martin, in the Team PWC. He is an experience Perl Hacker from Houston. He shared solutions to the Perl Weekly Challenge - 055 in Perl. Roger Bell_West shared blog for Perl Weekly Challenge - 051. If you haven’t blog before then why not give it a try. It doesn’t have to be a long one. It would help the reader understand the thought process behind your approach in solving the task.

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BLOG: The Weekly Challenge #055

Sunday, Apr 12, 2020 by Mohammad S Anwar Perl, Raku

The Perl Weekly Challenge - 055 was the most difficult week for me ever since I started contributing. Usually I submit my Perl and Raku by Wednesday but this time, I was working overtime and could only finished by Sunday afternoon. I must confess that I didn’t realise it was going to be as this difficult when I came up with the challenge. I am happy that I did it at the end of the day.

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Ryan Thompson › Perl Weekly Review #054

Sunday, Apr 12, 2020 by Ryan Thompson perl

Continues from previous week. Welcome to the Perl review for Week 054 of the Weekly Challenge! For a quick overview, go through the original tasks and recap of the weekly challenge. Getting in Touch Email › Email me (Ryan) with any feedback about this review. GitHub › Submit a pull request for any issues you may find with this page. Twitter › Join the discussion on Twitter! We’d greatly appreciate any feedback you’d like to give.

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Perl Weekly Challenge - 055

Monday, Apr 6, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Today is the first Monday of the month and time to select the Champion of the Month. With great pleasure, we announce the Champion of last month, Alicia Bielsa, currently ranked #029 with score of 86. As of today, she has contributed Perl (35) and Raku (8) solutions. Contributions breakdown are listed as below: Perl Weekly Challenge - 004: Perl (2) Perl Weekly Challenge - 006: Perl (1) Perl Weekly Challenge - 007: Perl (1) Perl Weekly Challenge - 008: Perl (2) Perl Weekly Challenge - 010: Perl (1) Perl Weekly Challenge - 011: Perl (2) Perl Weekly Challenge - 012: Perl (2) Perl Weekly Challenge - 042: Perl (2) Perl Weekly Challenge - 043: Perl (1) Perl Weekly Challenge - 044: Perl (2) Perl Weekly Challenge - 045: Perl (2) Perl Weekly Challenge - 046: Perl (2) Perl Weekly Challenge - 047: Perl (2), Raku (1) Perl Weekly Challenge - 048: Perl (2), Raku (2) Perl Weekly Challenge - 049: Perl (2) Perl Weekly Challenge - 050: Perl (2), Raku (1) Perl Weekly Challenge - 051: Perl (2), Raku (1) Perl Weekly Challenge - 052: Perl (2), Raku (1) Perl Weekly Challenge - 053: Perl (2), Raku (2) Perl Weekly Challenge - 054: Perl (1) Last but not the least, I woud like to thank each and every member for their support and encouragement.

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Ryan Thompson › Perl Weekly Review #053

Monday, Apr 6, 2020 by Ryan Thompson perl

Continues from previous week. Welcome to the Perl review for Week 053 of the Weekly Challenge! For a quick overview, go through the original tasks and recap of the weekly challenge. Getting in Touch Email › Email me (Ryan) with any feedback about this review. GitHub › Submit a pull request for any issues you may find with this page. Twitter › Join the discussion on Twitter! We’d greatly appreciate any feedback you’d like to give.

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RECAP - Perl Weekly Challenge - 054

Sunday, Apr 5, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES The surprise contribution of last week was from Ben Davies. He shared his Raku solutions after a short break. Roger Bell_West shared the blog for Perl Weekly Challenge - 050. Jaldhar H. Vyas catching up past challenges and solved the Perl Weekly Challenge - 041. GUESTS REPORT CARD 1) Ulrich Rieke: C++ (11), Haskell (13). 2) Lubos Kolouch: Python (20). 3) Orestis Zekai: Python (16).

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HELP: How to contribute?

Friday, Apr 3, 2020 by Mohammad S Anwar Perl, Raku

HELP: How to contribute? Just submit Pull Request to GitHub repository with your solutions. First find out the latest challenge folder, more likely the highest numbered folder is the latest challenge folder e.g. challenge-002. If you are an existing member, you would probably find a folder by your name. For example, if your name is “Joe Blog” then there would be a folder called “joe-blog”. Under your named folder, you would find a file README.

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BLOG: The Weekly Challenge #054

Wednesday, Apr 1, 2020 by Mohammad S Anwar Perl, Raku

For the first time, since I started participating the weekly challenges, I thought of doing one-liner. With handy CPAN modules, it was pretty straight forward in Perl. Even Raku with built-in features wasn’t far behind Perl. Like in the past, I learn something new in Raku every week. This week was no different. I will share what I learnt this time later. PERL Task #1: kth Permutation Sequence The CPAN module Algorithm::Combinatorics is becoming very popular and favourite among Perl Hackers.

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Ryan Thompson › Perl Weekly Review #052

Tuesday, Mar 31, 2020 by Ryan Thompson perl

Continues from previous week. Welcome to the Perl review for Week 052 of the Weekly Challenge! For a quick overview, go through the original tasks and recap of the weekly challenge. Getting in Touch Email › Email me (Ryan) with any feedback about this review. GitHub › Submit a pull request for any issues you may find with this page. Twitter › Join the discussion on Twitter! We’d greatly appreciate any feedback you’d like to give.

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RECAP - Perl Weekly Challenge - 053

Monday, Mar 30, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Last week saw Dave Jacoby hits the bulls eye and submitted solutions in Perl, Node and Rust. Also the star performer Jaldhar H. Vyas catching up past challenges Task #2 and BLOG of Perl Weekly Challenge - 036. He also shared complete solutions as well as BLOG of Perl Weekly Challenge - 052. New member, Shahed Nooshmand, joined the Team PWC. He shared solutions and BLOG to the Perl Weekly Challenge - 053.

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Meet The Champion: February 2020

Sunday, Mar 29, 2020 by Mohammad S Anwar Perl

Welcome to the monthly series “Meet The Champion”. Last month we spoke to Wanderdoc, the winner of January 2020. Today we are talking to Saif Ahmed, the winner of February 2020 of “Perl Weekly Challenge”. I hope you are going to enjoy the interview. Mohammad: Hi Saif, welcome to Meet the Champion. Can you tell us a bit about yourself? Saif Ahmed: Hi Mo, nice talking to you.

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Meet The Champion: January 2020

Sunday, Mar 29, 2020 by Mohammad S Anwar Perl

Welcome to the monthly series “Meet The Champion”. Last time we spoke to Noud Aldenhoven, the winner of Perl Weekly Challenge - 040. Today we are talking to Wanderdoc, the winner of January 2020 of “Perl Weekly Challenge”. I hope you are going to enjoy the interview. Mohammad: Tell us about your technical background? Wanderdoc: Actually I am an amateur in the world of programming. I graduated in 1985 and worked as a surgeon.

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Perl Weekly Challenge - 054

Sunday, Mar 29, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES With great pleasure, I would like to announce our inhouse Raku reviewer, Laurent Rosenfeld, is back after a short break. Based on the past record, I am sure, we would soon have all pending Raku reviews done one-by-one. I would like to take this opportunity to congratulate him on winning local electoral campaign. I know I have been neglecting the Meet The Champion series interviews since January 2020.

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BLOG: The Weekly Challenge #053

Friday, Mar 27, 2020 by Mohammad S Anwar Perl, Raku

I noticed now a days, I go for solution with unit test. I will give the credit to fellow Team PWC member, E. Choroba. It feels great when you see the test pass at the end. Well the solution looks little different than just standalone solution. For that reason, I decided to do both for Raku solutions. Also this allowed me to explore unit testing in Raku. PERL Task #1: Rotate Matrix Lets start with Perl solution for the task Rotate Matrix.

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Ryan Thompson › Perl Weekly Review #051

Tuesday, Mar 24, 2020 by Ryan Thompson perl

Continues from previous week. Welcome to the Perl review for Week 051 of the Weekly Challenge! For a quick overview, go through the original tasks and recap of the weekly challenge. Getting in Touch Email › Email me (Ryan) with any feedback about this review. GitHub › Submit a pull request for any issues you may find with this page. Twitter › Join the discussion on Twitter! We’d greatly appreciate any feedback you’d like to give.

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BLOG: The Weekly Challenge #052

Monday, Mar 23, 2020 by Mohammad S Anwar Perl, Raku

I look forward to the weekly challenges only to learn something new in Raku. I would like to thank many people (unfair to name few here) who guided me every time I am stuck, thanks to the Gang at Twitter. As the pattern I always follow, I started with Perl solution. I would not waste any time explaining my code as it is self explanatory. PERL Task #1: Stepping Numbers #!

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Perl Weekly Challenge - 053

Monday, Mar 23, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES In 2 days i.e. 25th March 2020, we would complete one year of weekly challenge. We would like to thank each and every contributors. We would also like to thanks Perl and Raku reviewers Kian-Meng Ang, Laurent Rosenfeld and Ryan Thompson for their support and encouragement. We would also like to thank our sole sponsor Peter Sergeant of PerlCareers for sponsoring the (weekly/monthly) winner. We are looking for volunteer to help us with Raku Reviews.

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RECAP - Perl Weekly Challenge - 052

Monday, Mar 23, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Last week, we had guest contributor, Richard Park, who contributed APL solutions. Roger Bell_West shared blogs for Week 048 and Week 049. Athansius shared solutions to the last week challenge after a short break. Welcome back Athanasius. I would like to share an interesting bit from Perl Reviews 050 by Ryan Thompson. In his review, Ryan improved my definition of the subroutine _order_intervals() as defined below:

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Ryan Thompson › Perl Weekly Review #050

Friday, Mar 20, 2020 by Ryan Thompson perl

Continues from previous week. Welcome to the Perl review for Week 050 of the Weekly Challenge! For a quick overview, go through the original tasks and recap of the weekly challenge. Getting in Touch Email › Email me (Ryan) with any feedback about this review. GitHub › Submit a pull request for any issues you may find with this page. Twitter › Join the discussion on Twitter! We’d greatly appreciate any feedback you’d like to give.

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Perl Weekly Challenge - 052

Monday, Mar 16, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES A friend of mine, Jeff Goff (@DrForr) sadly killed in a scuba-diving accident while on vacation few days ago. I have known him for many years, mostly got to attend his talk at London Perl Workshop. I still remember his talk “The Art of Programming”. It was a very different experience where audience got to play with piece of paper during the entire talk. I only got the opportunity to have one-2-one conversation with him at The Perl Conference in Riga last year.

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Ryan Thompson › Perl Weekly Review #049

Monday, Mar 16, 2020 by Ryan Thompson perl

Continues from previous week. Welcome to the Perl review for Week 049 of the Weekly Challenge! For a quick overview, go through the original tasks and recap of the weekly challenge. Getting in Touch Email › Email me (Ryan) with any feedback about this review. GitHub › Submit a pull request for any issues you may find with this page. Twitter › Join the discussion on Twitter! We’d greatly appreciate any feedback you’d like to give.

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RECAP - Perl Weekly Challenge - 051

Sunday, Mar 15, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES With last week contributions, I am currently placed at 46th position in the Top 50 contributors list. Andrezgz shared solutions to the Week #049 and Week #050 on top of last week challenge. Markus Holzer also shared solutions to the Week #019. Roger Bell_West shared blog for Week #047. Adam Russell shared the solutions to the last week challenge after a short break. Welcome back Adam.

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BLOG: The Weekly Challenge #051

Tuesday, Mar 10, 2020 by Mohammad S Anwar Perl, Raku

I am really enjoying the weekly challenges, specially doing in Raku. The point of blogging is also about sharing my fight with Raku. I hardly write anything about my Perl solution as I don’t see anything new to talk about. Having said that, I still go for Perl first as it is my first love and will remain so rest of my life. Even today, my brain is so tuned to Perl, every ideas come in form and shape of Perl only.

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Perl Weekly Challenge - 051

Monday, Mar 9, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES We are close to completing one year of weekly challenge. I am sure you would all agree, in this journey we have come across many experts in Perl and Raku. If you know of any Perl/Raku opportunities at your work place then please let us know about it. Similary if any member looking for any opportunities can reach out to us. We would then pass the contact details for you to take it further.

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BLOG: The Weekly Challenge #050

Sunday, Mar 8, 2020 by Mohammad S Anwar Perl, Raku

I had great fun working with Merge Intervals task this week. I didn’t know it was going to be more harder to solve than Noble number task. Keeping in mind the sample data provided with the task, I came up with solution very quickly. I was very happy with the result. I then decided to share it on Twitter. Guess what happens next? The master of Unit Test, none other than E.

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RECAP - Perl Weekly Challenge - 050

Sunday, Mar 8, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES With recent contributions, I finally made it to the Top 50 contributors list. Contributing in Raku is the main attraction for me. Did you notice that we now get regular contributions in other languages, specially Python, every week. GUESTS REPORT CARD 1) Ulrich Rieke: C++ (5), Haskell (6). 2) Orestis Zekai: Python (8). 3) Lubos Kolouch: Python (7). 4) User Person: Python (4).

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Perl Weekly Challenge - 050

Monday, Mar 2, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES It is time to announce our second winner of the year 2020. With great pleasure, we announce, Saif Ahmed, as winner of February 2020. Congratulations, Saif and thanks for your contributions, specially the tool EZPWC, created to help the Team PWC. Every time new member joins the Team PWC, I get very excited. With time, I started to feel I know him/her so well. There is one more thing that excites me, is when I see an existing member coming back after the break.

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RECAP - Perl Weekly Challenge - 049

Sunday, Mar 1, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Last week, some Team PWC members contributing to the past challenges as well as the current week. It is always great to see the commitments by the members. Some of them listed below: Yet Ebreo shared solutions to Perl Weekly Challenge - 036. Jaldhar H. Vyas shared the solutions with blog to Perl Weekly Challenge - 038. Roger Bell_West shared the blog for Perl Weekly Challenge - 046.

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Ryan Thompson › Perl Weekly Review #048

Sunday, Mar 1, 2020 by Ryan Thompson perl

Continues from previous week. Welcome to the Perl review for Week 048 of the Weekly Challenge! For a quick overview, go through the original tasks and recap of the weekly challenge. Getting in Touch Email › Email me (Ryan) with any feedback about this review. GitHub › Submit a pull request for any issues you may find with this page. Twitter › Join the discussion on Twitter! We’d greatly appreciate any feedback you’d like to give.

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BLOG: The Weekly Challenge #049

Wednesday, Feb 26, 2020 by Mohammad S Anwar Perl, Raku

This is my second blog for The Weekly Challenge. I am only able to participate, thanks to Ryan Thompson for helping me with the Perl and Raku reviews. I am going for Perl solutions first then will try to translate it into Raku next. I believe in coding to learn the language. With so many Raku experts around, I am not shy throwing questions up. I am now going to share my experience doing “The Weekly Challenge - 049”.

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Perl Weekly Challenge - 049

Sunday, Feb 23, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES We have seen rise of interest in the Perl Weekly Challenge recently and with that we have now 150 members in the Team PWC. We hope to keep you all engaged and interested. Please do share new ideas for challenges and any suggestion for improvement. We would like to thank Ruben Westerberg for suggesting task. We would also like to thank Herbert Bollermann (@HrBollermann) for interesting ideas for the task.

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RECAP - Perl Weekly Challenge - 048

Sunday, Feb 23, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Today, I am going to talk about one of the prominent member of Team PWC, Arne Sommer. I am confident you must have come across his contributions. He has been taking in the weekly challenge for sometime now. He mostly does Raku solution. He also does blog every week. I would like to share a very special quality of him, i.e. creative blog title. Please checkout below what I mean.

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Ryan Thompson › Perl Weekly Review: Challenge - #047

Friday, Feb 21, 2020 by Ryan Thompson perl

Continues from previous week. Welcome to the Perl review for Week 047 of the Weekly Challenge! For a quick overview, go through the original tasks and recap of the weekly challenge. Getting in Touch Email › Email me (Ryan) with any feedback about this review. GitHub › Submit a pull request for any issues you may find with this page. Twitter › Join the discussion on Twitter! We’d greatly appreciate any feedback you’d like to give.

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My first date with Raku

Friday, Feb 21, 2020 by Mohammad S Anwar Perl, Raku

Ever since I started the Perl Weekly challenge i.e. 25th March 2019, I have been planning to take part in the weekly challenge. Because of lack of time, I couldn’t take part in the past. In the Week #046, I finally took the plunge and contributed Perl solutions to the Perl Weekly Challenge - 046. Challenge #046 (Task #1) #!/usr/bin/perl use strict; use warnings; my @messages = ( 'P + 2 l !

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Perl Weekly Challenge - 048

Monday, Feb 17, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES In the Week #46, we introduced tool EZPWC, created by Saif Ahmed. Recently Saif released v0.06 with lots of features. If you haven’t tried it yet then please do give it a go and share your experience with us. This week, there is a slight delay in Raku reviews by Ryan Thompson. Hopefully in the next few days, we would have it ready. Thanks for your patience.

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Ryan Thompson › Perl Weekly Review: Challenge - #046

Monday, Feb 17, 2020 by Ryan Thompson perl

Continues from previous week. Welcome to the Perl review for Week 046 of the Weekly Challenge! For a quick overview, go through the original tasks and recap of the weekly challenge. Getting in Touch Email › Email me (Ryan) with any feedback about this review. GitHub › Submit a pull request for any issues you may find with this page. Twitter › Join the discussion on Twitter! We’d greatly appreciate any feedback you’d like to give.

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RECAP - Perl Weekly Challenge - 047

Sunday, Feb 16, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES We welcome Phillip Harris to the Team PWC and thanks for his first contributions in Perl. Alicia Bielsa attempted to solve the Task #2 in Raku for the first time. Well done and hope to see more Raku solutions in coming week. Jaldhar H. Vyas shared C++ solution to the Task #2 of “Perl Weekly Challenge - 044”. Lubos Kolouch came back after a short break and not only shared solutions in Perl but also in Python.

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Perl Weekly Challenge - 047

Monday, Feb 10, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES We are pleased to announce that we have found Raku Reviewer to cover the temporary break by Laurent Rosenfeld. Any guess? He is the coolest kid in the team, Ryan Thompson. I would like to mention another gem from the team, Ulrich Rieke, who is a star contributor. He has been contributing regularly in Perl, Raku, C++ and Haskell. You must have noticed there is a fixed set of members who blog about their solutions every week.

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RECAP - Perl Weekly Challenge - 046

Sunday, Feb 9, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES As you must have noticed, we have a new player to review Perl and Raku solutions. No prize for any guess. He is none other than, Ryan Thompson, himself. I know it is NOT an easy task and that too doing both. Hats off to Ryan for accepting the challenge. Team members have already appreciated his quality reviews. Please do share your suggestions. I also noticed familiar faces back in action.

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Ryan Thompson › Perl Weekly Review: Challenge - #045

Saturday, Feb 8, 2020 by Ryan Thompson perl

Welcome to the Perl review for Week 045 of the Weekly Challenge! For a quick overview, go through the original tasks and recap of the weekly challenge. Continues from previous week. Getting in Touch Email › Email me (Ryan) with any feedback about this review. GitHub › Submit a pull request for any issues you may find with this page. Twitter › Join the discussion on Twitter! We’d greatly appreciate any feedback you’d like to give.

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Perl Weekly Challenge - 046

Monday, Feb 3, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Apology to all team members, the Weekly Challenge is still not on the track. Things have improved but there is still a lot to do. I am pleasantly suprised by the offer of help by all the team members. Ryan Thompson offered to do Perl Reviews, which is a big help. I will now have one less thing to worry about every week. Thanks Ryan Thompson.

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RECAP - Perl Weekly Challenge - 045

Sunday, Feb 2, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES The biggest pleasnt surprise of last week, was by Arne Sommer. He has been religiously contributing quality Raku solutions with impeccable blog every week. For the first time last week, I noticed he contributed Perl solutions. In the past, I have seen Perl contributors started contributing Raku solutions but the reversal never happend before. This is the proudest moment for me. Thanks Arne Sommer for your continuous support and encouragement.

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Perl Weekly Challenge - 045

Wednesday, Jan 29, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Last week had been the toughest week for me. My dad is now back home and doing well. Thanks each and every person for the best wishes. I know everything is messed up at the moment. I came back from India with throat infection and really bad cough. I am not fully recovered yet but still improving day-by-day. I would like to thank Ryan Thompson for doing Perl Review in my absence.

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RECAP - Perl Weekly Challenge - 044

Wednesday, Jan 29, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES The highlight of last week contribution was Prolog solution submitted by Darren Bottin. I missed few regular contributors of Python though. Please keep up the great work. CENTURION CLUB Welcome Colin Crane to the Centurion Club. Ruben Westerberg moved up to rank #2. Scimon Proctor moved up to rank #11. Javier Luque moved up to rank #15. Ryan Thompson moved up to rank #16.

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Ryan Thompson › Perl Weekly Review: Challenge - 044

Sunday, Jan 26, 2020 by Ryan Thompson Perl

Continues from previous week. Feel free to submit a merge request or open a ticket if you found any issues with this post. We highly appreciate and welcome your feedback. You can also contact me (Ryan) directly, with any feedback on this review. For a quick overview, go through the original tasks and recap of the weekly challenge. Additional feedback to our Perl Weekly Challenge’s Twitter account is much appreciated.

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Ryan Thompson › Perl Weekly Review: Challenge - 043

Saturday, Jan 25, 2020 by Ryan Thompson Perl

Continues from previous week. Feel free to submit a merge request or open a ticket if you found any issues with this post. We highly appreciate and welcome your feedback. You can also contact me (Ryan) directly, with any feedback on this review. For a quick overview, go through the original tasks and recap of the weekly challenge. Additional feedback to our Perl Weekly Challenge’s Twitter account is much appreciated.

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Perl Weekly Challenge - 044

Monday, Jan 20, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Last week was really upsetting for me, I had call from my brother (India) telling me that Dad is unwell and currently admitted in ICU. I made quick arrangement and flew to India last Friday. I met my Dad the next day at the hospital. It was an emotional re-union of Father & Son. I am planning to stay with him for a week and flying back coming Sunday.

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Perl Weekly Review: Challenge - 042

Monday, Jan 20, 2020 by Mohammad S Anwar Perl

Continues from previous week. Feel free to submit a merge request or open a ticket if you found any issues with this post. We highly appreciate and welcome your feedback. For a quick overview, go through the original tasks and recap of the weekly challenge. Additional feedback to our Perl Weekly Challenge’s Twitter account is much appreciated. Task #1 Octal Number System Write a script to print decimal number 0 to 50 in Octal Number System.

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RECAP - Perl Weekly Challenge - 043

Monday, Jan 20, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES One thing, I noticed recently is the quality of blogs by the members. I find it hard to give enough time to justify the quality content. I would like to thank each and every members for their support and encouragement. CENTURION CLUB Welcome Burkhard Nickels to the Centurion Club. Ruben Westerberg moved up to rank #3. Scimon Proctor moved up to rank #11.

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Perl Weekly Challenge - 043

Monday, Jan 13, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES As you all know, **Perl Careers** has been the sole sponsor for the **Weekly Champion** through out the year 2019**, we are very grateful to Perl Careers** for the support. I have recently blogged (#1 and #2) with regard to attract more sponsors for the Weekly Champion. I will let you know as and when I hear any update in this regard. In the year 2020, we decided to pick Monthly Champion, thanks to Perl Careers, once again for the support.

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RECAP - Perl Weekly Challenge - 042

Monday, Jan 13, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Last week, few members came back after a short break, Jaldhar H. Vyas, Alicia Bielsa and Fabrizio Poggi, and shared solutions with us. We welcome all of them. We also had new member joining the team, Cristina Heredia from Madrid. We now have 141 members in the team. Ryan Thompson recently offered to re-design the Challenges page. He has completed first round of layout changes. He is still working on pagination to make it easier to navigate.

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Perl Weekly Review: Challenge - 041

Sunday, Jan 12, 2020 by Mohammad S Anwar Perl

Continues from previous week. Feel free to submit a merge request or open a ticket if you found any issues with this post. We highly appreciate and welcome your feedback. For a quick overview, go through the original tasks and recap of the weekly challenge. Additional feedback to our Perl Weekly Challenge’s Twitter account is much appreciated. Task #1 Write a script to display attractive number between 1 and 50.

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Perl Weekly Challenge - 042

Monday, Jan 6, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES With great pleasure, we announce Markus Holzer** as the winner of “Perl Weekly Challenge - 041”**. Congratulations Markus, you should soon hear from Perl Careers about your reward. For rest of the participants, I would say Good Luck for next time. Keep sending in your solutions and share your knowledge with each other. RECAP Quick recap of the “Perl Weekly Challenge - 041” by Mohammad S Anwar.

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Perl Weekly Review: Challenge - 040

Monday, Jan 6, 2020 by Mohammad S Anwar Perl

Continues from previous week. Feel free to submit a merge request or open a ticket if you found any issues with this post. We highly appreciate and welcome your feedback. For a quick overview, go through the original tasks and recap of the weekly challenge. Additional feedback to our Perl Weekly Challenge’s Twitter account is much appreciated. Task #1 Show multiple arrays content You are given two or more arrays.

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Project: Rename Perl6 to Raku

Monday, Jan 6, 2020 by Mohammad S Anwar Perl, Raku

I had been planning to kick start the mini project of renaming Perl6 to Raku on the official website of “Perl Weekly Challenge”. And the side project to this, shouldn’t it be called “The Weekly Challenge - Perl & Raku”? This is sticky area and needed more time to go through various aspects. Renaming project wasn’t too difficult to deal with but I was looking for some FREE time to do it properly.

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RECAP - Perl Weekly Challenge - 041

Monday, Jan 6, 2020 by Mohammad S Anwar Perl, Raku

HEADLINES Kian-Meng Ang had been reviewing Perl Solutions since week #007. I know you all appreciated the quality review done by Kian-Meng Ang. For some reason, Kian-Meng decided to take a break from the voluntary job. I would like to take this opportunity to thank Kian-Meng Ang for all the hard work. The change in team forced me take over the role. So from now on, you would see weekly review of Perl Solutions by me.

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Meet The Champion: Perl Weekly Challenge - 040

Saturday, Jan 4, 2020 by Mohammad S Anwar Perl, Raku

Welcome to the weekly series “Meet The Champion”. Last week we spoke to Colin Crain, the winner of Perl Weekly Challenge - 039. Today we are talking to the Perl Weekly Challenge - 040 winner Noud Aldenhoven. I hope you are going to enjoy the interview. Mohammad: Tell us about your technical background? Noud: Starting from a young age I’ve always been interested in Science and Technology.

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Kian-Meng Ang Weekly Review: Challenge - 039

Monday, Dec 30, 2019 by Kian-Meng Ang Perl

Continues from previous week. Feel free to submit a merge request or open a ticket if you found any issues with this post. We highly appreciate and welcome your feedback. For a quick overview, go through the original tasks and recap of the weekly challenge. Additional feedback to the our Perl Weekly Challenge’s Twitter account is much appreciated. Task #1 CPAN modules used: Data::Dumper, DateTime, DateTime::Duration, Function::Parameters, List::Util, Set::IntSpan, constant, feature, lib, strict, warnings

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Perl Weekly Challenge - 041

Monday, Dec 30, 2019 by Mohammad S Anwar Perl, Raku

HEADLINES With great pleasure, we announce Noud Aldenhoven** as the winner of “Perl Weekly Challenge - 040”**. Congratulations Noud, you should soon hear from Perl Careers about your reward. For rest of the participants, I would say Good Luck for next time. Keep sending in your solutions and share your knowledge with each other. RECAP Here is the recap of last week “Perl Weekly Challenge - 040”.

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RECAP - Perl Weekly Challenge - 040

Monday, Dec 30, 2019 by Mohammad S Anwar Perl, Raku

HEADLINES Merry Christmas & Happy New Year The last gift of Advent Calendar 2019 was presented by Jo Christian Oterhals. I would like to take this opportunity to thank each and every contributor to the Advent Calendar 2019. Please checkout THANK YOU message. Two new members, Duane Powell and Javier Luque, joined the Centurion Club last week. We now have 19 members in the club. Burkhard Nickels shared Raku solutions for the first time.

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2020 - Merry Christmas & Happy New Year

Wednesday, Dec 25, 2019 by Mohammad S Anwar Perl, Raku

Today December 25, 2019, we completed 9 months of weekly challenges. The Year 2019 will remain very special to all of us associated with “Perl Weekly Challenge”. We just celebrated Advent Calendar for the first time. It was fun revisiting some of the great contributions by fellow members. I would like to take this opportunity to THANK our sole sponsor, Peter Sergeant of PerlCareers. We are looking for more sponsors in the Year 2020.

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Advent Calendar 2019

Tuesday, Dec 24, 2019 by Mohammad S Anwar Perl, Raku

| 2020 | 2021 | With great pleasure, we announce our first Advent Calendar. In this festive season, you can expect interesting challenges with complete analytic solutions. MON TUE WED THU FRI SAT SUN

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Perl Weekly Challenge - 040

Monday, Dec 23, 2019 by Mohammad S Anwar Perl, Raku

HEADLINES With great pleasure, we announce Colin Crain** as the winner of “Perl Weekly Challenge - 039”**. Congratulations Colin, you should soon hear from Perl Careers about your reward. For rest of the participants, I would say Good Luck for next time. Keep sending in your solutions and share your knowledge with each other. RECAP Here is the recap of last week “Perl Weekly Challenge - 039”.

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RECAP - Perl Weekly Challenge - 039

Monday, Dec 23, 2019 by Mohammad S Anwar Perl, Raku

HEADLINES Advent Calendar 2019 is in the last leg. We have had some very interesting solutions by respected members of the team. Day 1: Word Ladder Puzzle by Laurent Rosenfeld Day 2: Ranking by Dave Jacoby Day 3: Encode/Decode Roman Numerals by Joelle Maslak Day 4: Hoftadter Female and Male Sequence by E. Choroba Day 5: Longest english word using US state postal abbreviation by Neil Bowers Day 6: Pythagoras Pie Puzzle by Arne Sommer Day 7: Ackermann Function by Jaldhar H.

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Kian-Meng Ang Weekly Review: Challenge - 038

Sunday, Dec 22, 2019 by Kian-Meng Ang Perl

Continues from previous week. Feel free to submit a merge request or open a ticket if you found any issues with this post. We highly appreciate and welcome your feedback. For a quick overview, go through the original tasks and recap of the weekly challenge. Additional feedback to the our Perl Weekly Challenge’s Twitter account is much appreciated. Task #1 CPAN modules used: Carp, Date::Calc, Date::Manip, DateTime, POSIX, Test::Exception, Test::More, Time::Local, Time::Piece, Try::Tiny, boolean, feature, strict, utf8, warnings

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Advent Calendar - December 21, 2019

Saturday, Dec 21, 2019 by Khalid Perl

Advent Calendar 2019 | Day 20 | Day 21 | Day 22 | The gift is presented by Gustavo Chaves. Today he is talking about his solutions to Task #1: Base35 Representation of “The Weekly Challenge - 002”. Write a script that can convert numbers to and from a base35 representation, using the characters 0-9 and A-Y. I cannot do it as a one-liner this time, but it was still fun.

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Advent Calendar - December 20, 2019

Friday, Dec 20, 2019 by Roger Bell_West Perl, Raku

Advent Calendar 2019 | Day 19 | Day 20 | Day 21 | The gift is presented by Roger Bell_West. Today he is talking about his solutions to Task #2: Word Game of “The Weekly Challenge - 038”. Lets assume we have tiles as listed below, with an alphabet (A..Z) printed on them. Each tile has a value, e.g. A (1 point), B (4 points) etc. You are allowed to draw 7 tiles from the lot randomly.

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Advent Calendar - December 18, 2019

Wednesday, Dec 18, 2019 by Philippe Bruhat Perl

Advent Calendar 2019 | Day 17 | Day 18 | Day 19 | The gift is presented by Philippe Bruhat. Today he is talking about his solutions to Task #2: FizzBuzz of “The Weekly Challenge - 001”. Write one-liner to solve FizzBuzz problem and print number 1-20. However, any number divisible by 3 should be replaced by the word fizz and any divisible by 5 by the word buzz. Numbers divisible by both become fizz buzz.

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Advent Calendar - December 17, 2019

Tuesday, Dec 17, 2019 by Yozen Hernandez Perl, Raku

Advent Calendar 2019 | Day 16 | Day 17 | Day 18 | The gift is presented by Athanasius. Today he is talking about his solutions to Task #2: Bitcoin Validation of “The Weekly Challenge - 016”. Write a script to validate a given bitcoin address. Most Bitcoin addresses are 34 characters. They consist of random digits and uppercase and lowercase letters, with the exception that the uppercase letter “O”, uppercase letter “I”, lowercase letter “l”, and the number “0” are never used to prevent visual ambiguity.

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Meet The Champion: Perl Weekly Challenge - 038

Tuesday, Dec 17, 2019 by Mohammad S Anwar Perl, Raku

Welcome to the weekly series “Meet The Champion”. Last week we spoke to Javier Luque, the winner of Perl Weekly Challenge - 037. Today we are talking to the Perl Weekly Challenge - 038 winner Ryan Thompson. I hope you are going to enjoy the interview. Mohammad: Tell us about your technical background? Ryan: My interest in computing started as a hobby in the early ’80s, and got into MS-DOS freelance work around 1990.

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Advent Calendar - December 16, 2019

Monday, Dec 16, 2019 by Yozen Hernandez Perl

Advent Calendar 2019 | Day 15 | Day 16 | Day 17 | The gift is presented by Yozen Hernandez. Today he is talking about his solutions to Task #2: Vigenère Cipher of “The Weekly Challenge - 015”. Write a script to implement Vigenère cipher. The script should be able encode and decode. Checkout wiki page for more information. This seemed like a cool challenge to tackle. Knowing next to nothing about encryption, I was worried that this would take me all week.

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Kian-Meng Ang Weekly Review: Challenge - 037

Monday, Dec 16, 2019 by Kian-Meng Ang Perl

Continues from previous week. Feel free to submit a merge request or open a ticket if you found any issues with this post. We highly appreciate and welcome your feedback. For a quick overview, go through the original tasks and recap of the weekly challenge. Additional feedback to the our Perl Weekly Challenge’s Twitter account is much appreciated. Task #1 CPAN modules used: Data::Dumper, Date::Manip, DateTime, DateTime::Duration, DateTime::Event::Recurrence, Function::Parameters, List::Util, Modern::Perl, POSIX, Test::More, Time::Local, Time::Moment, Time::Piece, Time::Seconds, Time::localtime, constant, feature, strict, utf8, warnings

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Perl Weekly Challenge - 039

Monday, Dec 16, 2019 by Mohammad S Anwar Perl, Raku

HEADLINES With great pleasure, we announce Ryan Thompson** as the winner of “Perl Weekly Challenge - 038”**. Congratulations Ryan, you should soon hear from Perl Careers about your reward. For rest of the participants, I would say Good Luck for next time. Keep sending in your solutions and share your knowledge with each other. RECAP Here is the recap of last week “Perl Weekly Challenge - 038”.

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RECAP - Perl Weekly Challenge - 038

Monday, Dec 16, 2019 by Mohammad S Anwar Perl, Raku

HEADLINES Advent Calendar 2019 is on full swing so far. We have had some very interesting solutions by respected members of the team. Day 1: Word Ladder Puzzle by Laurent Rosenfeld Day 2: Ranking by Dave Jacoby Day 3: Encode/Decode Roman Numerals by Joelle Maslak Day 4: Hoftadter Female and Male Sequence by E. Choroba Day 5: Longest english word using US state postal abbreviation by Neil Bowers Day 6: Pythagoras Pie Puzzle by Arne Sommer Day 7: Ackermann Function by Jaldhar H.

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Advent Calendar - December 15, 2019

Sunday, Dec 15, 2019 by Javier Luque Perl, Raku

Advent Calendar 2019 | Day 14 | Day 15 | Day 16 | The gift is presented by Javier Luque. Today he is talking about his solutions to Task #2: Dynamic Variable of “The Weekly Challenge - 031”. Create a script to demonstrate creating dynamic variable name, assign a value to the variable and finally print the variable. The variable name would be passed as command line argument. This one is a bit more difficult, creating a dynamic variable in Perl wasn’t a problem.

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Advent Calendar - December 13, 2019

Friday, Dec 13, 2019 by Burkhard Nickels Perl

Advent Calendar 2019 | Day 12 | Day 13 | Day 14 | The gift is presented by Burkhard Nickels. Today he is talking about his solutions to Task #1: Demonstrate Array/Hash Slices of “The Weekly Challenge - 034”. Demonstrate Array Slices or Hash slices. To demonstate some different Array and Hash slicing features I do some image processing. An image is “data” that can be stored in 2- or 3-dimensional Arrays.

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Advent Calendar - December 12, 2019

Thursday, Dec 12, 2019 by Laurent Rosenfeld Perl, Raku

Advent Calendar 2019 | Day 11 | Day 12 | Day 13 | The gift is presented by Laurent Rosenfeld. Today he is talking about his solutions to Task #1: nth Order Difference Series of “The Weekly Challenge - 023”. Create a script that prints nth order forward difference series. You should be a able to pass the list of numbers and order number as command line parameters. Let me show you with an example.

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Advent Calendar - December 11, 2019

Wednesday, Dec 11, 2019 by Yet Ebreo Perl

Advent Calendar 2019 | Day 10 | Day 11 | Day 12 | The gift is presented by Yet Ebreo. Today he is talking about his solutions to Task #1: Sexy Primes of “The Weekly Challenge - 022”. Write a script to print first 10 Sexy Prime Pairs. Sexy primes are prime numbers that differ from each other by 6. For example, the numbers 5 and 11 are both sexy primes, because 11 - 5 = 6.

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Advent Calendar - December 9, 2019

Monday, Dec 9, 2019 by Dave Cross Perl

Advent Calendar 2019 | Day 8 | Day 9 | Day 10 | The gift is presented by Dave Cross. Today he is talking about his solutions to Task #1: Find 5 Weekends of “The Weekly Challenge - 019”. Write a script to display months from the year 1900 to 2019 where you find 5 weekends i.e. 5 Friday, 5 Saturday and 5 Sunday. This would be simple enough to just brute-force.

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Meet The Champion: Perl Weekly Challenge - 037

Monday, Dec 9, 2019 by Mohammad S Anwar Perl, Raku

Welcome to the weekly series “Meet The Champion”. Last week we spoke to Duane Powell, the winner of Perl Weekly Challenge - 036. Today we are talking to the Perl Weekly Challenge - 037 winner Javier Luque. I hope you are going to enjoy the interview. Mohammad: Tell us about your technical background? Javier: I work for a company called Humanstate based in Sevenoaks and we run a platform called GivenGain that allows fundraisers to raise money for their favourite charities.

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Perl Weekly Challenge - 038

Monday, Dec 9, 2019 by Mohammad S Anwar Perl, Raku

HEADLINES With great pleasure, we announce Javier Luque** as the winner of “Perl Weekly Challenge - 037”**. Congratulations Javier, you should soon hear from Perl Careers about your reward. For rest of the participants, I would say Good Luck for next time. Keep sending in your solutions and share your knowledge with each other. RECAP Here is the recap of last week “Perl Weekly Challenge - 037”.

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Advent Calendar - December 8, 2019

Sunday, Dec 8, 2019 by Adam Russell Perl

Advent Calendar 2019 | Day 7 | Day 8 | Day 9 | The gift is presented by Adam Russell. Today he is talking about his solutions to Task #2: Priority Queue of “The Weekly Challenge - 018”. Write a script to implement Priority Queue. It is like regular queue except each element has a priority associated with it. In a priority queue, an element with high priority is served before an element with low priority.

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Kian-Meng Ang Weekly Review: Challenge - 036

Sunday, Dec 8, 2019 by Kian-Meng Ang Perl

Continues from previous week. Feel free to submit a merge request or open a ticket if you found any issues with this post. We highly appreciate and welcome your feedback. For a quick overview, go through the original tasks and recap of the weekly challenge. Additional feedback to the our Perl Weekly Challenge’s Twitter account is much appreciated. Task #1 CPAN modules used: Data::Validate::VIN, Function::Parameters, List::MoreUtils, List::Util, Readonly, Syntax::Construct, Test::Exception, Test::More, boolean, feature, strict, warnings

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RECAP - Perl Weekly Challenge - 037

Sunday, Dec 8, 2019 by Mohammad S Anwar Perl, Raku

HEADLINES Advent Calendar 2019 is on full swing so far. We have had some very interesting solutions by respected members of the team. Day 1: Word Ladder Puzzle by Laurent Rosenfeld Day 2: Ranking by Dave Jacoby Day 3: Encode/Decode Roman Numerals by Joelle Maslak Day 4: Hoftadter Female and Male Sequence by E. Choroba Day 5: Longest english word using US state postal abbreviation by Neil Bowers Day 6: Pythagoras Pie Puzzle by Arne Sommer Day 7: Ackermann Function by Jaldhar H.

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Advent Calendar - December 7, 2019

Saturday, Dec 7, 2019 by Jaldhar H. Vyas Perl, Raku

Advent Calendar 2019 | Day 6 | Day 7 | Day 8 | The gift is presented by Jaldhar H. Vyas. Today he is talking about his solutions to Task #1: Ackermann Function of “The Weekly Challenge - 017”. Create a script to demonstrate Ackermann function as defined in wikipedia. As per the example in wiki page. A(1, 2) = A(0, A(1, 1)) = A(0, A(0, A(1, 0))) = A(0, A(0, A(0, 1))) = A(0, A(0, 2)) = A(0, 3) = 4

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Advent Calendar - December 5, 2019

Thursday, Dec 5, 2019 by Neil Bowers Perl

Advent Calendar 2019 | Day 4 | Day 5 | Day 6 | The gift is presented by Neil Bowers. Today he is talking about his solutions to Task #2: Longest English word using US state postal abbreviation of “The Weekly Challenge - 014”. Using only the official postal (2-letter) abbreviations for the 50 U.S. states, write a script to find the longest English word you can spell? Here is the list of U.

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Advent Calendar - December 4, 2019

Wednesday, Dec 4, 2019 by E. Choroba Perl

Advent Calendar 2019 | Day 3 | Day 4 | Day 5 | The gift is presented by E. Choroba. Today he is talking about his solutions to Task #2: Hofstadter Female and Male Sequences of “The Weekly Challenge - 013”. Write a script to demonstrate Mutually Recursive methods. Two methods are mutually recursive if the first method calls the second and the second calls first in turn. Using the mutually recursive methods, generate Hofstadter Female and Male sequences.

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Advent Calendar - December 2, 2019

Monday, Dec 2, 2019 by Dave Jacoby Perl

Advent Calendar 2019 | Day 1 | Day 2 | Day 3 | The gift is presented by Dave Jacoby. Today he is talking about his solutions to Task #2: Ranking in Perl of “The Weekly Challenge - 009”. 1. Standard Ranking (1224): Items that compare equal receive the same ranking number, and then a gap is left in the ranking numbers. 2. Modified Ranking (1334): It is done by leaving the gaps in the ranking numbers before the sets of equal-ranking items.

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Meet The Champion: Perl Weekly Challenge - 036

Monday, Dec 2, 2019 by Mohammad S Anwar Perl

Welcome to the weekly series “Meet The Champion”. Last week we spoke to Steven Wilson, the winner of Perl Weekly Challenge - 035. Today we are talking to the Perl Weekly Challenge - 036 winner Duane Powell. I hope you are going to enjoy the interview. Mohammad: Tell us about your technical background? Duane: After getting a BS degree in Computer Science in 1985, I worked for a handful of defense contractors designing databases and writing programs in C.

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Perl Weekly Challenge - 037

Monday, Dec 2, 2019 by Mohammad S Anwar Perl, Raku

HEADLINES With great pleasure, we announce Duane Powell** as the winner of “Perl Weekly Challenge - 036”**. Congratulations Duane, you should soon hear from Perl Careers about your reward. For rest of the participants, I would say Good Luck for next time. Keep sending in your solutions and share your knowledge with each other. RECAP Here is the recap of last week “Perl Weekly Challenge - 036”.

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Advent Calendar - December 1, 2019

Sunday, Dec 1, 2019 by Laurent Rosenfeld Perl, Raku

Advent Calendar 2019 | Day 1 | Day 2 | The gift is presented by Laurent Rosenfeld. Today he is talking about his solutions to Task #2: Word Ladder of “The Weekly Challenge - 007”. Given two input words and a file that contains an ordered word list, implement a routine that finds the shortest ladder between the two input words. For example, for the words cold and warm, the routine might return: (“cold”, “cord”, “core”, “care”, “card”, “ward”, “warm”)

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Kian-Meng Ang Weekly Review: Challenge - 035

Sunday, Dec 1, 2019 by Kian-Meng Ang Perl

Continues from previous week. Feel free to submit a merge request or open a ticket if you found any issues with this post. We highly appreciate and welcome your feedback. For a quick overview, go through the original tasks and recap of the weekly challenge. Additional feedback to the our Perl Weekly Challenge’s Twitter account is much appreciated. Task #1 CPAN modules used: Data::Dumper, Term::ANSIColor, Term::ANSIScreen, Term::Size::Perl, Test::More, Text::Morse, Text::Trim, Time::HiRes, autodie, constant, experimental, feature, lib, strict, utf8, warnings

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RECAP - Perl Weekly Challenge - 036

Sunday, Dec 1, 2019 by Mohammad S Anwar Perl, Raku

HEADLINES A gentle reminder to all members that we have launched Advent Calendar 2019 on 1st December 2019. Please do checkout. I hope you would enjoy the selected challenge every day. Please let us know what you think about it. For the first time anyone submitted solutions in Haskell, all credit goes to our respected champion Ulrich Rieke. Also another champion Lubos Kolouch shared Python solutions. It gives me immense pleasure to receive solutions in guest languages.

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Meet The Champion: Perl Weekly Challenge - 035

Tuesday, Nov 26, 2019 by Mohammad S Anwar Perl

Welcome to the weekly series “Meet The Champion”. Last week we spoke to Burkhard Nickels, the winner of Perl Weekly Challenge - 034. Today we are talking to the Perl Weekly Challenge - 035 winner Steven Wilson. I hope you are going to enjoy the interview. Mohammad: Tell us about your technical background? Steven: Around 10 years ago I was working in MIS in a local college and started to study Computing and Mathematics through the Open University which resulted in a degree.

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Kian-Meng Ang Weekly Review: Challenge - 034

Sunday, Nov 24, 2019 by Kian-Meng Ang Perl

Continues from previous week. Feel free to submit a merge request or open a ticket if you found any issues with this post. We highly appreciate and welcome your feedback. For a quick overview, go through the original tasks and recap of the weekly challenge. Additional feedback to the our Perl Weekly Challenge’s Twitter account is much appreciated. Task #1 CPAN modules used: Data::Dumper, Getopt::Long, List::Util, Modern::Perl, PDL, PDL::Core, PDL::IO::Image, PDL::ImageRGB, PDL::NiceSlice, feature, strict, warnings

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RECAP - Perl Weekly Challenge - 035

Sunday, Nov 24, 2019 by Mohammad S Anwar Perl, Raku

HEADLINES Today, Monday 25th Nov, 2019, we have completed 8 months of successfull run of The Weekly Challenge. Over the period, I came across many smart hackers. I have lots of personal favourites that I always look forward to their solutions. It always brings a big smile on my face every time I look at their solutions. Sometimes, I find it difficult to grasp in first reading.

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The Weekly Challenge - 036

Sunday, Nov 24, 2019 by Mohammad S Anwar Perl, Raku

HEADLINES With great pleasure, we announce Steven Wilson as the winner of “The Weekly Challenge - 035”. Congratulations Steven, you should soon hear from Perl Careers about your reward. For rest of the participants, I would say Good Luck for next time. Keep sending in your solutions and share your knowledge with each other. A gentle reminder to all members, please send us your nominated solutions for the Advent Calendar 2019.

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