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).
How to find the position of an element in a vector without using the find function
Least common multiple of many numbers
Rotate a Matrix
Getting the indices from a vector
subtract central cross
How many monitors are connected ?
BLOCK x3 (Version 3)
Chess ELO rating system
Add more zeros
Expression or variable?
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