Problems from Waterloo Programming Contest 2009-06-13

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Convex Hull0.02412144931522%7.1Harden
Fire!0.01763401092523%5.6Harden
Nice Prefixes0.021786761317%8.5Harden
Slalom 20.1057595917218%5.7Harden
Tic Tac Toe0.01117416591298%8.7Harden