Your solution is fastest so far.
Good job, Athi.
@Athi, your solution contains many "magic" constant variables that I don't know how you got.
William's solution is much easier to understood, although it is slower than yours.
Thanks li haitao.
Test for balanced parentheses
Distance walked 1D
Remove entire row and column in the matrix containing the input values
Divide by 4
Scrabble Scores - 6
Divisible by 13
Highly divisible triangular number (inspired by Project Euler 12)
Divisible by 12
Not square-free number sequence
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