Problems from Google Code Jam 2008 Round 1B

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Crop Triangles (Easy) 400 211 53% 0.00 162 148 91% 3.2
Crop Triangles (Hard) 260 113 43% 0.01 99 88 89% 4.8
Number Sets 1036 406 39% 0.00 275 236 86% 4.2
Number Sets (Hard) 668 207 31% 0.06 171 119 70% 7.1