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.
Remove all the consonants
Rotate input square matrix 90 degrees CCW without rot90
Check that number is whole number
Beginner's Problem - Squaring
Scrabble Scores - 5
Scrabble Scores - 12
Scrabble Scores - 3
5th Time's a Charm
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