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:
Make the vector [1 2 3 4 5 6 7 8 9 10]
Increment a number, given its digits
Project Euler: Problem 10, Sum of Primes
Return the Fibonacci Sequence
Kaggle: Planetoid Game of Life - Solve 40 non-trivial Puzzles
Rubik's Cube : Solve Ten Face Move - Speed Scoring
GJam 2017 Kickstart: Vote (Large)
USC Spring 2013 ACM: Snow Cones
Alias abs to asb
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