The Weekly Challenge

09. TASK #1: Sum Bitwise Operator

HEADLINES

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RECAP

Quick recap of The Weekly Challenge - 162 by Mohammad S Anwar.

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Task 1: Sum Bitwise Operator

Submitted by: Mohammad S Anwar

You are given list positive numbers, @n.

Write script to calculate the sum of bitwise & operator for all unique pairs.

Example 1

Input: @n = (1, 2, 3)
Output: 3

Since (1 & 2) + (2 & 3) + (1 & 3) => 0 + 2 + 1 =>  3.

Example 2

Input: @n = (2, 3, 4)
Output: 2

Since (2 & 3) + (2 & 4) + (3 & 4) => 2 + 0 + 0 =>  2.

Task 2: Summations

Submitted by: Mohammad S Anwar

You are given a list of positive numbers, @n.

Write a script to find out the summations as described below.

Example 1

Input: @n = (1, 2, 3, 4, 5)
Output: 42

    1 2 3  4  5
      2 5  9 14
        5 14 28
          14 42
             42

The nth Row starts with the second element of the (n-1)th row.
The following element is sum of all elements except first element of previous row.
You stop once you have just one element in the row.

Example 2

Input: @n = (1, 3, 5, 7, 9)
Output: 70

    1 3  5  7  9
      3  8 15 24
         8 23 47
           23 70
              70

Last date to submit the solution 23:59 (UK Time) Sunday 8th May 2022.