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:
Implement a ROT13 cipher
Tell me the slope
yet another flying fly (YAFF)
Back to basics 4 - Search Path
Combinations without using nchoosek
Genome Sequence 001: Introductory DNA Sequencing
Solve Rubik's Cube - One Rotation
LASER Tracker - Mirror Distance and Angle
Solve Quadratic : No * - or key functions permitted
Angle between Two Vectors
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