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.
Back and Forth Rows
Who knows the last digit of pi?
Determine Whether an array is empty
Rotate input square matrix 90 degrees CCW without rot90
Find last zero for each column
Create a "+" flag
Flag a convertible string
Create the flag of Ramumbia
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