May you add some testcases concerning that ~mod(63-45,9) = true, but 63 and 45 has definitely not the same digits.
Factorize THIS, buddy
Sum all integers from 1 to 2^n
Back to basics 8 - Matrix Diagonals
Number of digits in an integer
First N Perfect Squares
Return the first and last character of a string
Roll the Dice!
Right Triangle Side Lengths (Inspired by Project Euler Problem 39)
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