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).
Renaming a field in a structure array
N-Dimensional Array Slice
Is this matrix orthogonal?
Sophie Germain prime
Pandigital number n°1 (Inspired by Project Euler 32)
Longest Collatz Sequence
Pandigital number n°3 (Inspired by Project Euler 32)
Divisors for big integer
Pandigital number n°2 (Inspired by Project Euler 32)
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