The Weekly Challenge

09. TASK #1: Count Even Digits Number

HEADLINES

Welcome to the Week #258 of The Weekly Challenge.

Let us all welcome Ruth Holloway who joined the Team PWC as a guest contributor to start with. She has contributed solutions in COBOL. It is always nice to see someone picked a language not many bothered to try. We should all take this opportunity to learn something new.

I’m “GeekRuthie,” aka Ruth Holloway, a 20-year veteran Perl coder and member of the Board of TPRF, and a member of the Dancer core team. I live in the southeastern US, and will be doing the challenges primarily in languages other than Perl or Raku, just for fun.

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


`Week`	`Perl`	`Raku`	`Blog`
`253`	53	29	25
`254`	53	32	26
`255`	55	30	26
`256`	57	32	26
`257`	41	25	22

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


`Week`	`Guests`	`Contributions`	`Languages`
`253`	17	60	19
`254`	17	62	20
`255`	17	60	18
`256`	17	63	17
`257`	19	61	20

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.

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 7. C++        (482)
 8. JavaScript (337)
 9. Go         (329)
10. BQN        (316)

Blogs with Creative Title

1. Currently Reduced by Arne Sommer.

2. Lesser, Inferior, Lower, Junior by Dave Jacoby.

3. Ranked Echelons by Jorg Sommrey.

4. Post-Valentine Challenge by Luca Ferrari.

5. Reduced is Smaller! by Packy Anderson.

6. Smaller and reduced by Peter Campbell Smith.

7. Smaller than Echelon by Roger Bell_West.

8. The current echelon by Simon Green.

GitHub Repository Stats

1. Commits: 36,780 (`+127`)

2. Pull Requests: 9,634 (`+44`)

3. Contributors: 243

4. Fork: 304

5. Stars: 168 (`+1`)

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RECAP

Quick recap of The Weekly Challenge - 257 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

Ruth Holloway from USA 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 #257.

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

Task 1: Count Even Digits Number

Submitted by: Mohammad Sajid Anwar

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

Write a script to find out how many integers have even number of digits.

Example 1

Input: @ints = (10, 1, 111, 24, 1000)
Output: 3

There are 3 integers having even digits i.e. 10, 24 and 1000.

Example 2

Input: @ints = (111, 1, 11111)
Output: 0

Example 3

Input: @ints = (2, 8, 1024, 256)
Output: 1

Task 2: Sum of Values

Submitted by: Mohammad Sajid Anwar

You are given an array of integers, @int and an integer $k.

Write a script to find the sum of values whose index binary representation has exactly $k number of 1-bit set.

Example 1

Input: @ints = (2, 5, 9, 11, 3), $k = 1
Output: 17

Binary representation of index 0 = 0
Binary representation of index 1 = 1
Binary representation of index 2 = 10
Binary representation of index 3 = 11
Binary representation of index 4 = 100

So the indices 1, 2 and 4 have total one 1-bit sets.
Therefore the sum, $ints[1] + $ints[2] + $ints[4] = 17

Example 2

Input: @ints = (2, 5, 9, 11, 3), $k = 2
Output: 11

Example 3

Input: @ints = (2, 5, 9, 11, 3), $k = 0
Output: 2

Last date to submit the solution 23:59 (UK Time) Sunday 3rd March 2024.