Robbie Hatley’s Solutions, in Perl, for The Weekly Challenge #362 (“Echo Chamber” and “Spellbound Sorting”)

For those not familiar with "The Weekly Challenge", it is a weekly programming puzzle with two parts, with a new pair of tasks each Monday. You can find it here: The Weekly Challenge

The Weekly Challenge for the week of 2026-02-23 through 2026-03-01 is #362. The tasks for challenge #362 are as follows:

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Task 362-1: Echo Chamber
Submitted by: Mohammad Sajid Anwar
You are given a string containing lowercase letters. Write a
script to transform the string based on the index position of
each character (starting from 0). For each character at
position i, repeat it i + 1 times.

Example #1:
Input: "abca"
Output: "abbcccaaaa"

Example #2:
Input: "xyz"
Output: "xyyzzz"

Example #3:
Input: "code"
Output: "coodddeeee"

Example #4:
Input: "hello"
Output: "heelllllllooooo"

Example #5:
Input: "a"
Output: "a"

This is just a matter of doing exactly as the problem description says. I use the "x" operator to make multiple copies of letters.

Robbie Hatley's Perl Solution to The Weekly Challenge 362-1

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Task 362-2: Spellbound Sorting
Submitted by: Peter Campbell Smith
You are given an array of integers. Write a script to return
them in alphabetical order, in any language of your choosing.
Default language is English.

Example #1:
Input: (6, 7, 8, 9 ,10)
Output: (8, 9, 7, 6, 10)
eight, nine, seven, six, ten

Example #2:
Input: (-3, 0, 1000, 99)
Output: (-3, 99, 1000, 0)
minus three, ninety-nine, one thousand, zero

Example #3:
Input: (1, 2, 3, 4, 5)
Output: (5, 2, 4, 3, 1) for French language
cinq, deux, quatre, trois, un
Output: (5, 4, 1, 3, 2) for English language
five, four, one, three, two

Example #4:
Input: (0, -1, -2, -3, -4)
Output: (-4, -1, -3, -2, 0)
minus four, minus one, minus three, minus two, zero

Example #5:
Input: (100, 101, 102)
Output: (100, 101, 102)
one hundred, one hundred and one, one hundred and two

Fortunately, I already wrote a "number to words" script long ago. It's in English only, because that's the only language I know the number words for. It's too complicated for me to describe exactly how it works here, but I'll say this much: it involves "Math::BigFloat", "Math::BigInt", place values, and a look-up table for place-value groups from "thousand" through "duotrigintillion". If you want the exact details, you'll have to read the script.

Robbie Hatley's Perl Solution to The Weekly Challenge 362-2

That's it for challenge 362; see you on challenge 363!