cool idea! very eye-opening
Second thoughts: I think in the new version of MATLAB, the initial value of ans should be set for empty matrix, not empty string.
Knight's Tour Checker
Number of 1s in a binary string
Fill a zeros matrix
Equal to their cube
BASICS - sum part of vector
Basics - not so easy division
Basic commands - Greatest common divisor
Basic commands - rounding
What's size of TV?
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