May you add some testcases concerning that ~mod(63-45,9) = true, but 63 and 45 has definitely not the same digits.
Sum of diagonal of a square matrix
Create a Multiplication table matrix...
Side of an equilateral triangle
Flip the vector from right to left
Return the 'Size' of a String of Code
First N Perfect Squares
Specific Element Count
Solve the Sudoku Row
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