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.
Sums with Excluded Digits
Find state names that end with the letter A
Determine the number of odd integers in a vector
Sum of series I
So many choices
Sum My Indices
Cull vector elements that contain a specified digit
Maintain shape of logical-index mask
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