This is cheating.
it's not, this is a direct and clever solution to the specified problem which would not work for other arbitrary Cody problems, hence not cheating (in my book)
Project Euler: Problem 9, Pythagorean numbers
Return unique values without sorting
Get the length of a given vector
I Plead the Fifth
Draw a 'X'!
Composing relative poses in 2D: problem 1
Determine roll pitch yaw angles from a 3D rotation matrix
Relative points in 2D: problem 3
Invert a 3D rotation matrix
Orientation of a 3D coordinate frame
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