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:
Determine if input is odd
Find the sum of the elements in the "second" diagonal
Back to basics 3 - Temp Directory
GJam 2013 Veterans: Hedge
Kaggle: Planetoid Game of Life - Solve 40 non-trivial Puzzles
Path Optimization thru N words : Time Optimization
Reading Web Binary Files (jpg,pdf,tiff,png)
Create Circular Perfect Square Sequence
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