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.
It dseon't mettar waht oedrr the lrettes in a wrod are.
radius of a spherical planet
Find number of days
Who invented zero?
Convert Hard Drive marketing sizes to actual data sizes
Back to basics 16 - byte order
Back to basics 22 - Rotate a matrix
Back to basics 23 - Triangular matrix
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