Problems from Waterloo Programming Contest 2009-06-13

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Convex Hull 1053 249 24% 0.03 205 150 73% 7.2
Fire! 3125 695 22% 0.01 568 429 76% 5.4
Nice Prefixes 62 15 24% 0.02 20 12 60% 8.6
Slalom 2 786 140 18% 0.10 118 84 71% 6.2
Tic Tac Toe 1261 66 5% 0.01 151 46 30% 9.1