Problems from Waterloo Programming Contest 2009-06-13

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Convex Hull0.03412134130423%7.0Harden
Fire!0.01763380687823%5.8Harden
Nice Prefixes0.021786631219%8.7Harden
Slalom 20.1057587816619%5.6Harden
Tic Tac Toe0.01117415501117%8.9Harden