The Weekly Challenge

HEADLINES

Welcome to the Week #222 of The Weekly Challenge.

Just a quick update about my dad, I lost him last Monday. May his soul Rest in Peace. Thank you everyone for the kind messages.

Let us all welcome Andreas Voegele, an expert Perl hacker from Stuttgart, Germany to the Team PWC.

Finally, it is time to announce the next champion, little late though. So we declare Matthias Muth as our Champion of the month May 2023. As of today, he has contributed 34 Perl solutions and 14 blogs.

Today, we are giving away Coupon #45 to Jan Krnavek for the book, Learning Perl Exercises by brian d foy. I will share the details with you in a separate email.

PAST WINNERS



`S. No.`	`Name`	`S. No.`	`Name`

1.	`Cheok-Yin Fung`	2.	`W. Luis Mochan`
3.	`Robert DiCicco`	4.	`Kueppo Wesley`
5.	`Solathian`	6.	`Dario Mazzeo`
7.	`Peter Campbell Smith`	8.	`Kjetil Skotheim`
9.	`Neils van Dijke`	10.	`Laurent Rosenfeld`
11.	`Duncan C. White`	12.	`Ali Moradi`
13.	`Jorg Sommrey`	14.	`James Smith`
15.	`Alexander Pankoff`	16.	`Simon Green`
17.	`Robbie Hatley`	18.	`Bob Lied`
19.	`Athanasius`	20.	`David Ferrone`
21.	`Thomas Kohler`	22.	`Adam Russell`
23.	`E. Choroba`	24.	`Pip Stuart`
25.	`Roger Bell_West`	26.	`Flavio Poletti`
27.	`Dave Jacoby`	28.	`Mariano Spadaccini`
29.	`Lubos Kolouch`	30.	`Matthew Neleigh`
31.	`Paulo Custodio`	32.	`Tyler Bird`
33.	`Carlos Oliveira`	34.	`Avery Adams`
35.	`Matthias Muth`	36.	`Leo Manfredi`
37.	`Peter Meszaros`	38.	`Arne Sommer`
39.	`Jaldhar H. Vyas`	40.	`Mark Anderson`
41.	`Rob Turner`	42.	`BarrOff`
43.	`Robert Ransbottom`	44.	`Peter Meszaros`
45.		46.
47.		48.
49.		50.

Last 5 weeks mainstream contribution stats. Thank you Team PWC for your support and encouragements.


`Week`	`Perl`	`Raku`	`Blog`
`217`	60	32	23
`218`	43	22	16
`219`	35	22	22
`220`	49	29	18
`221`	39	27	16

Last 5 weeks guest contribution stats. Thank you each and every guest contributors for your time and efforts.


`Week`	`Guests`	`Contributions`	`Languages`
`217`	09	34	13
`218`	10	36	15
`219`	12	37	15
`220`	06	32	10
`221`	07	23	09

TOP 10 Guest Languages

Do you see your favourite language in the Top 10? If not then why not contribute regularly and make it to the top.

 1. Python  (1596)
 2. Haskell (557)
 3. Ruby    (528)
 4. Lua     (477)
 5. C       (426)
 6. C++     (381)
 7. Rust    (376)
 8. BQN     (299)
 9. Go      (258)
10. Java    (225)

Blogs with Creative Title

1. Subsequencially Good by Arne Sommer.

2. Good Strings, Bad Strings by Avery Adams.

3. TDD for Good… strings by Lance Wicks.

4. Too lazy for programming it? Let regex do the work! by Matthias Muth.

5. Good strings and hidden sequences by Peter Campbell Smith.

6. Good Arithmetic by Roger Bell_West.

GitHub Repository Stats

1. Commits: 32,903 (`+97`)

2. Pull Requests: 8,239 (`+33`)

3. Contributors: 225 (`+1`)

4. Fork: 283 (`+2`)

5. Stars: 158 (`+2`)

Our solo sponsor Pete Sergeant has been a great support to keep us motivated. We are lucky that he agreed to continue the journey with us in the year 2023. I would like to personally thank Pete and his entire team for their generosity. It would be great if we could add few more to sponsor the prize money so that we could go back and declare weekly champions as we have done in the past. I hope and wish this will become possible in 2023. The amount doesn’t have to be huge. However, it would be nice to show off bunch of supporters. If an organisation comes forward and supports us then that would be the ultimate achievement.

RECAP

Quick recap of The Weekly Challenge - 221 by Mohammad S Anwar.

PERL REVIEW

If you missed any past reviews then please check out the collection.

RAKU REVIEW

If you missed any past reviews then please check out the collection.

CHART

Please take a look at the charts showing interesting data.

I would like to THANK every member of the team for their valuable suggestions. Please do share your experience with us.

NEW MEMBERS

Andreas Voegele, an expert Perl hacker from Stuttgart, Germany joined the Team PWC.

Please find out How to contribute?, if you have any doubts.

Please try the excellent tool EZPWC created by respected member Saif Ahmed of Team PWC.

GUESTS

Please check out the guest contributions for the Week #221.

Please find past solutions by respected guests. Please share your creative solutions in other languages.

Task 1: Matching Members

Submitted by: Mohammad S Anwar

You are given a list of positive integers, @ints.

Write a script to find the total matching members after sorting the list increasing order.

Example 1

Input: @ints = (1, 1, 4, 2, 1, 3)
Output: 3

Original list: (1, 1, 4, 2, 1, 2)
Sorted list  : (1, 1, 1, 2, 3, 4)

Compare the two lists, we found 3 matching members (1, 1, 2).

Example 2

Input: @ints = (5, 1, 2, 3, 4)
Output: 0

Original list: (5, 1, 2, 3, 4)
Sorted list  : (1, 2, 3, 4, 5)

Compare the two lists, we found 0 matching members.

Example 3

Input: @ints = (1, 2, 3, 4, 5)
Output: 5

Original list: (1, 2, 3, 4, 5)
Sorted list  : (1, 2, 3, 4, 5)

Compare the two lists, we found 5 matching members.

Task 2: Last Member

Submitted by: Mohammad S Anwar

You are given an array of positive integers, @ints.

Write a script to find the last member if found otherwise return 0. Each turn pick 2 biggest members (x, y) then decide based on the following conditions, continue this until you are left with 1 member or none.

a) if x == y then remove both members

b) if x != y then remove both members and add new member (y-x)

Example 1:

Input: @ints = (2, 7, 4, 1, 8, 1)
Output: 1

Step 1: pick 7 and 8, we remove both and add new member 1 => (2, 4, 1, 1, 1).
Step 2: pick 2 and 4, we remove both and add new member 2 => (2, 1, 1, 1).
Step 3: pick 2 and 1, we remove both and add new member 1 => (1, 1, 1).
Step 4: pick 1 and 1, we remove both => (1).

Example 2:

Input: @ints = (1)
Output: 1

Example 3:

Input: @ints = (1, 1)
Output: 0

Step 1: pick 1 and 1, we remove both and we left with none.

Last date to submit the solution 23:59 (UK Time) Sunday 25th June 2023.