Covering some basic topics I haven't seen elsewhere on Cody.
Return the number of punctuation characters in the input variable.
Trouble in the test suite :)
I think the problem is with Cody itself today. It's doing weird things. If you submit this solution again it fails.
Back to basics 14 - Keywords
letter yes yes & letter no no
Arrange vector in ascending order
Back to basics 22 - Rotate a matrix
Back to basics 23 - Triangular matrix
Back to basics 17 - white space
Back to basics 11 - Max Integer
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