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:
Remove the vowels
Alphabetize by last name
Back to basics 9 - Indexed References
poll: would you like the regexp (?@cmd) functionality to be banned in Cody?
Spherical radius given four points
Fifteen Parity Check
Genome Sequence 004: Long 3rd Generation Segment Correction
BattleShip - Seaman (1) thru Admiral(6) : CPU Time Scoring(msec)
Create array of all Distances between two Sets of Points : No Neural Network Toolbox
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