read question carefully!!!
Design test case carefully....
To avoid non-desired usages, like pi, it is necessary to not place pi in the function name. The function can be searched for forbidden function usages. There is an aspect of cat and mouse in Cody Challenges.
I agree. Disallow usage of PI for fairer scoring of your problem. Neat question!
Determine if input is odd
Back to basics 23 - Triangular matrix
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