Problems from Google Code Jam 2008 Round 1B

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Crop Triangles (Easy) 392 205 52% 0.00 156 142 91% 3.1
Crop Triangles (Hard) 247 107 43% 0.01 94 82 87% 5.4
Number Sets 1018 396 39% 0.00 266 227 85% 4.2
Number Sets (Hard) 653 200 31% 0.06 165 113 68% 7.2