Given an input character string (e.g. '1001'), return a character string with the bits flipped ('0110').
The test suite does not check that the solution is a character string, but the problem definition requires that it should.
Added this check. (I messed it up a bit the first time I tried to do it, so sorry for some interim weirdness.)
str = num2str(A,formatSpec), could replace '
Invalid solution, really
New test suite invalidates this solution.
Return the largest number that is adjacent to a zero
Summing Digits within Text
The Answer to Life, the Universe, and Everything
MATCH THE STRINGS (2 CHAR) very easy
find the maximum element of the matrix
Factorize THIS, buddy
Maintain shape of logical-index mask
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