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'
give nth decimal place of pi
Reverse the elements of an array
03 - Matrix Variables 1
03 - Matrix Variables 5
Side of a rhombus
Broken numlock key, oppps !
Return the names and values of the input arguments of a function
Let's get back to school: create mixed numbered fraction
Create an index-powered vector
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