Since the vast majority of recent problems are how to hack Cody, here's another one, with an even more malformed test suite than the original singularity.
Good luck hacking this one.
One interesting spin is: can you solve this problem using a freepass?
OK.
It will, but will the freepass work again if I rescore the solution? :-)
Determine whether a vector is monotonically increasing
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Calculate Alcohol By Volume with Original and Final Gravity
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