The Weekly Challenge

HEADLINES

Welcome to the Week #303 of The Weekly Challenge.

Today is the first Monday of the month and year 2025, so it is time to declare the last champion of the year 2024. With great pride, I announce, Arne Sommer as the Champion of the Month for the second time. He has been one of the most consistent contributors for a very long time. I don’t remember if he has ever missed a week. He primarily shared solutions in Raku but in the past he has also contributed in Perl. For me, the best contribution is his creative blog post every week. Plenty of discussion with link to the official documentation. Anyone can easily understand the underlying function. Thank you, Arne Sommer, for your support and contribution.

In couple of months i.e. March 2025, we would complete the 6th year of weekly challenge. It has been a long journey. Without the support and encouragement, I wouldn’t have made it so far. Having said, I do feel little tired now. Could it be, age is catching up? I still have plenty of support to carry on for few more years. I will never let it die, no matter what.

Keep sharing knowledge and fresh ideas in the new year.

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


`Week`	`Perl`	`Raku`	`Blog`
`298`	35	18	21
`299`	37	13	10
`300`	41	19	16
`301`	45	18	13
`302`	37	20	16

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


`Week`	`Guests`	`Contributions`	`Languages`
`298`	9	45	19
`299`	10	45	19
`300`	10	42	16
`301`	9	39	15
`302`	12	48	19

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     (3135)
 2. Rust       (824)
 3. Ruby       (759)
 4. Haskell    (735)
 5. Lua        (676)
 6. C          (590)
 7. C++        (577)
 8. JavaScript (522)
 9. Go         (446)
10. BQN        (404)

Blogs with Creative Title

1. Zero Step by Arne Sommer.

2. 3^4 * 5*2 by Dave Jacoby.

3. Optimal Steps by Jorg Sommrey.

4. All about ones by Peter Campbell Smith.

5. Step By Step One Becomes Zero by Roger Bell_West.

6. Step zero, step one by Simon Green.

GitHub Repository Stats

1. Commits: 41,826 (`+90`)

2. Pull Requests: 11,390 (`+33`)

3. Contributors: 256

4. Fork: 323

5. Stars: 181 (`+1`)

With start of Week #268, we have a new sponsor Lance Wicks for the entire year 2024. Having said we are looking for more sponsors so that we can go back to weekly winner. If anyone interested please get in touch with us at perlweeklychallenge@yahoo.com. Thanks for your support in advance.

RECAP

Quick recap of The Weekly Challenge - 302 by Mohammad Sajid 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

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 #302.

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

Task 1: 3-digits Even

Submitted by: Mohammad Sajid Anwar

You are given a list (3 or more) of positive integers, @ints.

Write a script to return all even 3-digits integers that can be formed using the integers in the given list.

Example 1

Input: @ints = (2, 1, 3, 0)
Output: (102, 120, 130, 132, 210, 230, 302, 310, 312, 320)

Example 2

Input: @ints = (2, 2, 8, 8, 2)
Output: (222, 228, 282, 288, 822, 828, 882)

Task 2: Delete and Earn

Submitted by: Mohammad Sajid Anwar

You are given an array of integers, @ints.

Write a script to return the maximum number of points you can earn by applying the following operation some number of times.

Pick any ints[i] and delete it to earn ints[i] points.
Afterwards, you must delete every element equal to ints[i] - 1
and every element equal to ints[i] + 1.

Example 1

Input: @ints = (3, 4, 2)
Output: 6

Delete 4 to earn 4 points, consequently, 3 is also deleted.
Finally delete 2 to earn 2 points.

Example 2

Input: @ints = (2, 2, 3, 3, 3, 4)
Output: 9

Delete a 3 to earn 3 points. All 2's and 4's are also deleted too.
Delete a 3 again to earn 3 points.
Delete a 3 once more to earn 3 points.

Last date to submit the solution 23:59 (UK Time) Sunday 12^th January 2025.