Problems from Waterloo Programming Contest 2009-06-13

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Convex Hull 859 209 24% 0.03 158 118 75% 7.1
Fire! 2225 512 23% 0.01 393 299 76% 5.6
Nice Prefixes 57 13 23% 0.02 18 10 56% 8.7
Slalom 2 302 72 24% 0.10 67 51 76% 8.0
Tic Tac Toe 657 44 7% 0.01 82 32 39% 8.7