test cases imply that the question title should be "spot the square"
I added a rectangular (non-square) test case. Thanks for the note.
This is a good answer. I changed the test suite so that you wouldn't have to deal with logical input matrices. Sorry about that!
This code is referenced in the following blog post: http://blogs.mathworks.com/community/2015/01/19/robot-game-playing-in-matlab-part-2/
Given an unsigned integer x, find the largest y by rearranging the bits in x
Find the nearest integer
Find last zero for each column
Is this group simply connected?
Simulate one complete step in the Biham–Middleton–Levine traffic model
2048 Next Move
Count the Digits in the Box
Spot the outlier
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