Spookily similar to Problem 381 ("Angle between two vectors")....
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Determine Whether an array is empty
Evaluating a polynomial
GJam March 2016 IOW: Polynesiaglot Large
GJam March 2016 IOW: Polynesiaglot Small
Knots Contest: Score (TestSuite)
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GJam 2014 China Rd B: Sudoku Checker
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