Problems from Google Code Jam 2008 Round 1B

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Crop Triangles (Easy) 403 214 53% 0.00 165 151 92% 3.2
Crop Triangles (Hard) 262 115 44% 0.01 101 90 89% 4.7
Number Sets 1050 412 39% 0.00 281 242 86% 4.2
Number Sets (Hard) 685 215 31% 0.06 179 127 71% 6.8