Problems from Google Code Jam 2008 Round 1B

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Crop Triangles (Easy) 642 331 52% 0.00 292 256 88% 3.2
Crop Triangles (Hard) 448 173 39% 0.01 158 137 87% 5.5
Number Sets 1440 571 40% 0.00 387 328 85% 4.4
Number Sets (Hard) 1056 317 30% 0.06 278 195 70% 6.8