It seems to me that the result for [m,n]=[4,4] is incorrect.
Yes it is, William. It should be the 2x2 case (instead of 4x4), which should be all zeros.
The test suite has been updated.
Given an unsigned integer x, find the largest y by rearranging the bits in x
Sum the Digits of a Number
Calculate the Number of Sign Changes in a Row Vector (No Element Is Zero)
Create the flag of Ramumbia
Create a "+" flag
Flag a convertible string
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