Too many clues are given in the Solution Template.
Also, Problem Statement is inconsistent with Test Suite (and Solution Template). It should say: "Create a function that subtracts b from a" (not "a from b").
SHOULD BE SUBSTRACTS b FROM A
The problem description has been updated.
Set the array elements whose value is 13 to 0
Sum of first n positive integers
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how to concatenate matrices
Persistence will not help you solve this problem.
A little bit of luck needed
Get Cody's screen size
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