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).
pressure to dB?
Removing rows from a matrix is easy - but what about inserting rows?
Detect a number and replace with two NaN's
Fermat's Last Theorem - Fermat's conjecture
Sum of big primes without primes
BLOCK x3 (Version 3)
Magic is simple (for beginners)
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