A good opportunity to implement a hashtable: lots of collisions without it.
A re-post of Solution 1137054, because that one doesn't appear in the list of solutions, for some reason (I'm not sure why).
Finding Perfect Squares
Choose the best fitting dominoes
intersection of matrices
Magic is simple (for beginners)
Pandigital number n°3 (Inspired by Project Euler 32)
BLOCK x3 (Version 3)
Pandigital number n°1 (Inspired by Project Euler 32)
Return a list sorted by number of consecutive occurrences
Find my secret number
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