I really don't see the point of that kind of problems where you can't use Matlab built-in functions.
How long is the longest prime diagonal?
Reindex a vector
Getting the indices from a matrice
intersection of matrices
Convert a numerical matrix into a cell array of strings
Cody Computer Part 1 - Guess the system font used by uipanel
Sort an array of structures
Set some matrix elements to zero
Cody Computer Part 2 - Get the license number of Cody Computer
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