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.
Swap the first and last columns
Remove the vowels
02 - Vector Variables 4
Sum of odd numbers in a matrix
Back to basics 18 - justification
Back to basics 2 - Function Path
Back to basics 1 - Saving
Back to basics 20 - singleton dimensions
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