May you add some testcases concerning that ~mod(63-45,9) = true, but 63 and 45 has definitely not the same digits.
Find the sum of the elements in the "second" diagonal
Back to basics 23 - Triangular matrix
Spot the outlier
Will there be a new leader?
Solve the Sudoku Row
Recurring Cycle Length (Inspired by Project Euler Problem 26)
Return the 'Size' of a String of Code
Clock Hand Angle 1
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