Test for balanced parentheses
Least common multiple of many numbers
Back to basics 22 - Rotate a matrix
Pi Estimate 1
Angle between Two Vectors
Knots Contest: Score (ContestSuite)
PACMAT - G03 Ghosts use minimum path to PACMAT; 3 Lives
USC Spring 2013 ACM: Snow Cones
Rubik's Cube: Solve 12 Face moves
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