Duplicate a character 'n' times.
Example 1: str='a' n=5
Example 2: str='*' n=3
n is a nonnegative interger.may it be the largest problem that i meet.
My initial solution with repelem(str,n) for n=0 creates a size 1x0 char class but suite only allows for a 0x0 class. Not sure why the difference would matter.
Add two numbers
Back to basics 25 - Valid variable names
Is A the inverse of B?
How long is the longest prime diagonal?
Change the sign of even index entries of the reversed vector
Moving average (variable kernel length)
Remove entire row and column in the matrix containing the input values
Symmetry of vector
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