1. This solution is much faster on re-invocation than the one without the persistent num_ones variable. Unless of course it is performed on a much larger (than num_ones) array of 32-bit integer.
2. It is essential to have the statement
The reason for this is that the floor() function has a problem with precision. If can fail with 32-bit integer that are close to 2^32.
For instance, consider this Matlab code and system response:
Given two strings, find the maximum overlap
Valid Chess Moves
Permute diagonal and antidiagonal
When can one be the Life Member of the IEEE?
Knots Contest: Score (TestSuite)
Knots Contest: Minimum Knots (ContestSuite)
Knot Count - Speed
Create Circular Perfect Square Sequence
Maximum Intra-Vector Swaps
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