Test for balanced parentheses
Are you in or are you out?
Remove from a 2-D matrix all the rows that contain at least one element less than or equal to 4
The Answer to Life, the Universe, and Everything
Calculate the Hamming distance between two strings
Numeric array to cell array of strings (easy)
Change a specific color in an image
The Python Challenge, Level 1: Decode strings
Determine the number of maximal cliques in an undirected graph
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