Solutions graph shows clearly at least two different algorithms.
Nice square wave! Assuming from the template it's more like choosing between passing vector GV unchanged or str2numing it and saving ~220 on size.
Reverse the Words (not letters) of a String
First non-zero element in each column
middleAsColumn: Return all but first and last element as a column vector
Derivative of polynomial
Lights Out 13 - 5x5, three stages, x moves
Lights Out 12 - 5x5, three stages, <7 moves
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