You're *very* close with this one. Remember that r is input as a double, not a string.
Inner product of two vectors
Back to basics 22 - Rotate a matrix
Set some matrix elements to zero
Is this a valid Tic Tac Toe State?
Numbers in extended form
How brilliant are you?
It's Happy! It's Fun! It's Happy Fun Hyperball!
Sleeping Queens 1
Crunch that matrix!
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