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).
Prime factor digits
Inner product of two vectors
Find the 9's Complement
Predicting life and death of a memory-less light bulb
How many monitors are connected ?
Pandigital number n°3 (Inspired by Project Euler 32)
Narcissistic number ?
How to reverse spdiags?
BLOCK x3 (Version 3)
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