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.
Renaming a field in a structure array
"Look and say" sequence
Television Screen Dimensions
Integer sequence - 2 : Kolakoski sequence
Lights Out 6 - 5x5, 13 moves
Tic-Tac-Logic - Solution Checker
Lights Out 5 - 5x5, 10 moves
Divisible by n, prime divisors from 20 to 200
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