Problems from Waterloo Programming Contest 2009-06-13

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Convex Hull 1010 238 24% 0.03 191 141 74% 6.8
Fire! 2608 601 23% 0.01 476 366 77% 5.3
Nice Prefixes 62 15 24% 0.02 20 12 60% 8.6
Slalom 2 784 140 18% 0.10 117 84 72% 6.0
Tic Tac Toe 1174 61 5% 0.01 127 42 33% 9.0