For a given input string str, find how many spaces are there in the string and replace those spaces with *
e.g. str = 'this is demo of replacing spaces with stars';
out = 'this*is*demo*of*replacing*spaces*with*stars'
Determine Whether an array is empty
06 - Matrix Equations 2
07 - Common functions and indexing 1
Sum of odd numbers in a matrix
Who is the baby and who is the daddy in this family?
Create a matrix with difference of each row of input matrix
Tax Season ! How much is my salary?
Back to basics - mean of corner elements of a matrix
Create an index-powered vector
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