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 a row of zeros on top of a matrix
Swap two numbers
Max of a Vector
Product of Array
Symmetry of vector
Change the sign of even index entries of the reversed vector
Remove entire row and column in the matrix containing the input values
Insert zeros into vector
Moving average (variable kernel length)
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