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).
Get the area codes from a list of phone numbers
surface of a spherical planet
Spot the rectangle
Make a random, non-repeating vector.
Volume of a Simplex
Narcissistic number ?
Clear all empty variables from the workspace
How many monitors are connected ?
Permute diagonal and antidiagonal
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