One interesting spin is: can you solve this problem using a freepass?
It will, but will the freepass work again if I rescore the solution? :-)
Now you're just showing off... :-P
Test for balanced parentheses
Better bullseye matrix
The sum of the numbers in the vector
Rewrite setdiff to account for non-unique values
Break it up! Break it up!
There are 10 types of people in the world
Must be in the front row...
Pandigital Multiples of 11 (based on Project Euler 491)
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