Perl Weekly Challenge - 066

Monday, Jun 22, 2020| Tags: Perl, Raku


The week #065 started on a happy note when I received the contribution by Andrew Shitov. He doesn’t need an introduction, does he? He even blogged about his contribution. On a serious note, I got the sense that most of the Team PWC found the task Palindrome Partition very confusing. I must admit, I also realised when I solved the task myself. I noticed there are more solutions than what I thought initially. I would like to apologise for any inconvenience. I would like to suggest if you ever come across task with missing bits then please feel free to make sensible assumption and deal with the task. Don’t forget to document your solution appropriately.

I am not sure if you have noticed the latest trend among the Team PWC. It is the love for Live Coding video. Inspired by Richard Park, I have done second week on the trot. I was pleasantly surprised to see E. Choroba also gave it a go. I would love to see many more sharing video contributions.

Task #1: Digits Sum by E. Choroba.

Task #1: Digits Sum by Mohammad S Anwar.

Task #2: Palindrom Partition by Mohammad S Anwar.

and APL solution by Richard Park.

The week #066 is going to be very busy week not because of weekly challenge but Conference in the Cloud taking away 3 days of the week. I am looking forward to the event. I have already bought the ticket and booked 3 days off from work. So far, I always gave a talk every time I attend a conference. This time, I gave it a miss because of lack of time for preparation. I was hoping one of Team PWC would share his/her experience with the weekly challenge. Unfortunately it is too late to submit a talk proposal. However there is still time for lightning talk. Even if you have never given a talk before, 5 minutes lightning talk should be good start, in my humble opinion. Here is the link if you want to submit your proposal.

I would like to thank Team PWC members for kind words and appreciation. It means a world to me. I do get thank you note sometimes with the pull request, which is very pleasing, I must admit. In the recent blog by Cheok-Yin Fung, I came to know about Cheok-Yin link to Ladakh. We (Indian) always have a good relationship with Ladakhi.

Last but not the least, I would like to thank each and every member for their support and encouragement.


Quick recap of the “Perl Weekly Challenge - 065” by Mohammad S Anwar.


If you missed any past reviews then please checkout the collection.


If you missed any past reviews then please checkout the collection.


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.


Andrew Shitov

Andrew is a Raku enthusiast since around 2000, an author of a number of books, and the organiser of a lot of Perl and Raku events, including three annual European conferences. Currently working on his new book Creating a Compiler with Raku.

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

Please give it a try to an excellent tool EZPWC created by respected member Saif Ahmed of Team PWC.


Richard Park shared solutions to Task #1 and Task #2 in APL.

Ulrich Rieke shared solution to Task #1 and Task #2 in Haskell.

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

TASK #1 › Divide Integers

Submitted by: Mohammad S Anwar

You are given two integers $M and $N.

Write a script to divide the given two integers i.e. $M / $N without using multiplication, division and mod operator and return the floor of the result of the division.

Example 1:

Input: $M = 5, $N = 2
Output: 2

Example 2:

Input: $M = -5, $N = 2
Output: -3

Example 3:

Input: $M = -5, $N = -2
Output: 2

TASK #2 › Power Integers

Submitted by: Mohammad S Anwar

You are given an integer $N.

Write a script to check if the given number can be expressed as mn where m and n are positive integers. Otherwise print 0.

Please make sure m > 1 and n > 1.

BONUS: If there are more than one ways to express the given number then print all possible solutions.

Example 1:

For given $N = 9, it should print 32 or 3^2.

Example 2:

For given $N = 45, it should print 0.

Example 3:

For given $N = 64, it should print all or one of 8^2 or 2^6 or 4^3.

Last date to submit the solution 23:59 (UK Time) Sunday 28th June 2020.


If you have any suggestions or ideas then please do share with us.

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