Please change the example [188 289] in your problem description to [188 189], as I believe [188 289] should return [9 1], rather than [9 9]. (By the way, great job picking 189 to use for a check. Right at the end of the two-digit numbers.)
uint8 is our friend.
Back to basics 1 - Saving
Find best placement for ordered dominoes (harder)
Make a Star Pyramid
Find the sides of an isosceles triangle when given its area and height from its base to apex
Index of a Rational number
Method of Common Differences part-2
Number of cyles and fixed points in a permutation
Number of paths on a grid
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