This is (more or less) cribbed from the USC contest winner's solution.
Very fast and very compact solution. Nice usage of complex to calculate distance between points and recursion.
Check if sorted
fly fly away
Scoring for oriented dominoes
Index of a Rational number
Top of the Hour : Return from your routine within 1 second of the hour
GJam March 2016 IOW: Clock Dance
Create array of all Distances between two Sets of Points
Loading/Expanding a ZIP file from File Exchange
Cubic Integer Constrained Solution
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