Problems from Google Code Jam 2010 Online Competition Africa

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Get to Work 1072 522 49% 0.00 478 440 92% 2.4
Odd Man Out 13519 7656 57% 0.00 6636 6273 95% 1.5
Polygraph 53 10 19% 0.01 13 10 77% 7.4
Qualification Round 105 27 26% 0.00 26 18 69% 7.0