Problems from Waterloo Programming Contest 2009-06-13

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Convex Hull 1027 245 24% 0.03 198 147 74% 6.8
Fire! 2772 633 23% 0.01 494 383 78% 5.2
Nice Prefixes 62 15 24% 0.02 20 12 60% 8.6
Slalom 2 785 140 18% 0.10 118 84 71% 6.2
Tic Tac Toe 1197 62 5% 0.01 132 43 33% 9.0