Spookily similar to Problem 381 ("Angle between two vectors")....
Implement a ROT13 cipher
Remove NaN ?
Better bullseye matrix
Specific Element Count
Rounding off numbers to n decimals
GJam 2011 Africa Qualifier B: Optimum Profit
TRON Tourney 010: Fixed Pattern CCW
PACMAT 08 - Awesome Tunneling Ghosts, 2X Speed, 6 Lives, Game Download
Rubik's Cube: 30 Moves or Less : Minimum Moves
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