The Weekly Challenge

HEADLINES

Welcome to the Week #210 of The Weekly Challenge.

Two days ago i.e. 25 March 2023, we completed 4 years of weekly challenge. Hard to believe to be honest. It has been a long and fun journey with you all. I made plenty of friends and learnt a lot from the fellow team members.

I noticed some members e.g. Bob Lied, Jorg Sommrey, Lubos Kolouch and Paulo Custodio are playing with the past challenges. It makes me very happy that senior members showing interest in the past challenges. Some even doing it in guest languages too. I am very impressed.

Today, we are giving away Coupon #33 to Carlos Oliveira 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.		34.
35.		36.
37.		38.
39.		40.
41.		42.
43.		44.
45.		46.
47.		48.
49.		50.

Just missed the target by 1 but I am sure in the next couple of days we would get pasth 100+ contributions. Thank you Team PWC.


`Week`	`Perl`	`Raku`	`Blog`
`184`	57	31	17
`185`	61	35	19
`186`	58	33	20
`187`	51	34	20
`188`	63	36	16
`189`	62	35	18
`190`	55	32	23
`191`	56	38	21
`192`	59	41	23
`193`	55	31	22
`194`	58	32	19
`195`	58	29	19
`196`	51	29	20
`197`	49	31	20
`198`	54	37	23
`199`	58	34	24
`200`	57	33	23
`201`	58	29	22
`202`	53	27	24
`203`	52	24	18
`204`	56	31	22
`205`	64	30	25
`206`	59	29	23
`207`	59	34	26
`208`	60	33	23
`209`	51	29	19

I would like to thank every guest contributors for making it special every week. Last week we received 41 guest contributions in 16 languages

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  (1415)
 2. Haskell (543)
 3. Ruby    (484)
 4. Lua     (453)
 5. C       (367)
 6. C++     (362)
 7. Rust    (336)
 8. BQN     (269)
 9. Go      (250)
10. Java    (221)

Blogs with Creative Title

1. Special Account by Arne Sommer.

2. Give A Little Bit by Dave Jacoby.

3. grep and loop by Luca Ferrari.

4. An abc and @emails by Peter Campbell Smith.

5. Special Merge by Roger Bell_West.

6. Special Accounts by Simon Green.

GitHub Repository Stats

1. Commits: 31,482 (`+185`)

2. Pull Requests: 7,798 (`+41`)

3. Contributors: 220

4. Fork: 275

5. Stars: 151

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 - 209 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

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 #209.

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

Task 1: Kill and Win

Submitted by: Mohammad S Anwar

You are given a list of integers.

Write a script to get the maximum points. You are allowed to take out (kill) any integer and remove from the list. However if you do that then all integers exactly one-less or one-more would also be removed. Find out the total of integers removed.

Example 1

Input: @int = (2, 3, 1)
Output: 6

First we delete 2 and that would also delete 1 and 3. So the maximum points we get is 6.

Example 2

Input: @int = (1, 1, 2, 2, 2, 3)
Output: 11

First we delete 2 and that would also delete both the 1's and the 3. Now we have (2, 2).
Then we delete another 2 and followed by the third deletion of 2. So the maximum points we get is 11.

Task 2: Number Collision

Submitted by: Mohammad S Anwar

You are given an array of integers which can move in right direction if it is positive and left direction when negative. If two numbers collide then the smaller one will explode. And if both are same then they both explode. We take the absolute value in consideration when comparing.

All numbers move at the same speed, therefore any 2 numbers moving in the same direction will never collide.

Write a script to find out who survives the collision.

Example 1:

Input: @list = (2, 3, -1)
Output: (2, 3)

The numbers 3 and -1 collide and -1 explodes in the end. So we are left with (2, 3).

Example 2:

Input: @list = (3, 2, -4)
Output: (-4)

The numbers 2 and -4 collide and 2 explodes in the end. That gives us (3, -4).
Now the numbers 3 and -4 collide and 3 explodes. Finally we are left with -4.

Example 3:

Input: @list = (1, -1)
Output: ()

The numbers 1 and -1 both collide and explode. Nothing left in the end.

Last date to submit the solution 23:59 (UK Time) Sunday 2nd April 2023.