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.
Back and Forth Rows
Most nonzero elements in row
Say something funny
Relative ratio of "1" in binary number
Remove entire row and column in the matrix containing the input values
Insert zeros into vector
Symmetry of vector
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