The Weekly Challenge

HEADLINES

Welcome to the Week #227 of The Weekly Challenge.

Let us all welcome two new members, Packy Anderson and Adriaan Dens to the Team PWC.

Thank you Peter Campbell Smith for the proposed tasks of Week #227.

At The Perl and Raku Conference 2023 in Toronto, I handed over the T-shirt to Saif Ahmed and Will Braswell. Those who are new, we decided to celebrate the 1000 days of weekly challenge by giving away specially designed T-shirt. For some unavoidable reasons, I couldn’t deliver the T-shirt to the eligible members. I am taking my family to India on 3 weeks break, flying on 4th Aug. I will get this sorted when I am back, promise.

The details of the celebration and eligible members are formally documented for refence.

Today, we are giving away Coupon #49 to Luca Ferrari 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.	`Andreas Voegele`
45.	`Jan Krnavek`	46.	`Steven Wilson`
47.	`Bruce Gray`	48.	`PokGoPun`
49.		50.

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


`Week`	`Perl`	`Raku`	`Blog`
`222`	56	30	19
`223`	44	25	16
`224`	38	21	15
`225`	56	31	24
`226`	61	32	26

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


`Week`	`Guests`	`Contributions`	`Languages`
`222`	10	41	14
`223`	09	37	13
`224`	08	32	13
`225`	13	63	21
`226`	13	52	14

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  (1678)
 2. Haskell (568)
 3. Ruby    (549)
 4. Lua     (491)
 5. C       (433)
 6. Rust    (399)
 7. C++     (391)
 8. BQN     (302)
 9. Go      (258)
10. Java    (238)

Blogs with Creative Title

1. Shuffled Operations by Adam Russell.

2. Zero Shuffle by Arne Sommer.

3. Shuffle Off To Buffalo by Dave Jacoby.

4. Array indexes everywhere! by Luca Ferrari.

5. Gnirsts and nothing left by Peter Campbell Smith.

6. Shuffling Zeroes by Roger Bell_West.

7. Moving and Removing by Simon Green.

GitHub Repository Stats

1. Commits: 33,399 (`+116`)

2. Pull Requests: 8,423 (`+44`)

3. Contributors: 227 (`+1`)

4. Fork: 289 (`+3`)

5. Stars: 160 (`+1`)

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 - 226 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

Packy Anderson, an experienced Perl/Raku hacker from Haledon, NJ, USA joined the Team PWC.

Adriaan Dens, an experienced Perl hacker 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 #226.

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

Task 1: Friday 13th

Submitted by: Peter Campbell Smith

You are given a year number in the range 1753 to 9999.

Write a script to find out how many dates in the year are Friday 13th, assume that the current Gregorian calendar applies.

Example

Input: $year = 2023
Output: 2

Since there are only 2 Friday 13th in the given year 2023 i.e. 13th Jan and 13th Oct.

Task 2: Roman Maths

Submitted by: Peter Campbell Smith

Write a script to handle a 2-term arithmetic operation expressed in Roman numeral.

Example

IV + V     => IX
M - I      => CMXCIX
X / II     => V
XI * VI    => LXVI
VII ** III => CCCXLIII
V - V      => nulla (they knew about zero but didn't have a symbol)
V / II     => non potest (they didn't do fractions)
MMM + M    => non potest (they only went up to 3999)
V - X      => non potest (they didn't do negative numbers)

Last date to submit the solution 23:59 (UK Time) Sunday 30th July 2023.