The Weekly Challenge - 364

pwc-364.md

The Weekly Challenge - 364

Early Bird Club members ONLY

Task 1: Decrypt String

Submitted by: Mohammad Sajid Anwar

You are given a string formed by digits and #.

Write a script to map the given string to English lowercase characters following the given rules.

- Characters 'a' to 'i' are represented by '1' to '9' respectively.
- Characters 'j' to 'z' are represented by '10#' to '26#' respectively.

Example 1

Input: $str = "10#11#12"
Output: "jkab"

10# -> j
11# -> k
1   -> a
2   -> b

Example 2

Input: $str = "1326#"
Output: "acz"

1   -> a
3   -> c
26# -> z

Example 3

Input: $str = "25#24#123"
Output: "yxabc"

25# -> y
24# -> x
1   -> a
2   -> b
3   -> c

Example 4

Input: $str = "20#5"
Output: "te"

20# -> t
5   -> e

Example 5

Input: $str = "1910#26#"
Output: "aijz"

1   -> a
9   -> i
10# -> j
26# -> z

Task 2: Goal Parser

Submitted by: Mohammad Sajid Anwar

You are given a string, $str.

Write a script to interpret the given string using Goal Parser.

The Goal Parser interprets "G" as the string "G", "()" as the string "o", and "(al)" as the string "al". The interpreted strings are then concatenated in the original order.

Example 1

Input: $str = "G()(al)"
Output: "Goal"

G    -> "G"
()   -> "o"
(al) -> "al"

Example 2

Input: $str = "G()()()()(al)"
Output: "Gooooal"

G       -> "G"
four () -> "oooo"
(al)    -> "al"

Example 3

Input: $str = "(al)G(al)()()"
Output: "alGaloo"

(al) -> "al"
G    -> "G"
(al) -> "al"
()   -> "o"
()   -> "o"

Example 4

Input: $str = "()G()G"
Output: "oGoG"

() -> "o"
G  -> "G"
() -> "o"
G  -> "G"

Example 5

Input: $str = "(al)(al)G()()"
Output: "alalGoo"

(al) -> "al"
(al) -> "al"
G    -> "G"
()   -> "o"
()   -> "o"

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Last date to submit the solution 23:59 (UK Time) Sunday 15^th March 2026.

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