If my over-use of str2num has in any way caused offense, I hereby beg leave to apologize.
My hat's off to you for such a solution. I'm baffled as to how to decode it (pun intended). I know that there has been a lot of furor over the use of regexp and other string-based functions, conversions, etc. to lower solution sizes for problems in general, but this problem is string-based, so I see no problem in solving it via arcane string methods.
Back to basics 22 - Rotate a matrix
Multiply a column by a row
Reindex a vector
Big numbers, least significant digits
Big numbers, repeated least significant digits
Cycling — Normalized Power
Divisible by n, prime divisors from 20 to 200
Rumis Scorer 1
Divisible by 12
Legend of Zelda - Rupee Count (Compact)
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