I took complements of the test case polar angles in order to agree with customary definitions of polar angle.
I agree. Polar angles are, by convention, measured from the pole, but in this problem you have to consider them to be measure from the equator if you wish to agree with the test cases.
Sort a list of complex numbers based on far they are from the origin.
Project Euler: Problem 3, Largest prime factor
intersection of matrices
MATCH THE STRINGS (2 CHAR) very easy
ASCII Birthday Cake
N-Dimensional Array Slice
Check to see if a Sudoku Puzzle is Solved
Triangle Numbers Below N
Return the 'Size' of a String of Code
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