The Weekly Challenge - 321

pwc-321.md

The Weekly Challenge - 321

Early Bird Club members ONLY

Task 1: Distinct Average

Submitted by: Mohammad Sajid Anwar

You are given an array of numbers with even length.

Write a script to return the count of distinct average. The average is calculate by removing the minimum and the maximum, then average of the two.

Example 1

Input: @nums = (1, 2, 4, 3, 5, 6)
Output: 1

Step 1: Min = 1, Max = 6, Avg = 3.5
Step 2: Min = 2, Max = 5, Avg = 3.5
Step 3: Min = 3, Max = 4, Avg = 3.5

The count of distinct average is 1.

Example 2

Input: @nums = (0, 2, 4, 8, 3, 5)
Output: 2

Step 1: Min = 0, Max = 8, Avg = 4
Step 2: Min = 2, Max = 5, Avg = 3.5
Step 3: Min = 3, Max = 4, Avg = 3.5

The count of distinct average is 2.

Example 3

Input: @nums = (7, 3, 1, 0, 5, 9)
Output: 2

Step 1: Min = 0, Max = 9, Avg = 4.5
Step 2: Min = 1, Max = 7, Avg = 4
Step 3: Min = 3, Max = 5, Avg = 4

The count of distinct average is 2.

Task 2: Backspace Compare

Submitted by: Mohammad Sajid Anwar

You are given two strings containing zero or more #.

Write a script to return true if the two given strings are same by treating # as backspace.

Example 1

Input: $str1 = "ab#c"
       $str2 = "ad#c"
Output: true

For first string,  we remove "b" as it is followed by "#".
For second string, we remove "d" as it is followed by "#".
In the end both strings became the same.

Example 2

Input: $str1 = "ab##"
       $str2 = "a#b#"
Output: true

Example 3

Input: $str1 = "a#b"
       $str2 = "c"
Output: false

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Last date to submit the solution 23:59 (UK Time) Sunday 18^th May 2025.

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