Problems from Google Code Jam 2010 Online Competition Africa

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Get to Work0.00343117855747%2.7Easyen
Odd Man Out0.004915611870756%1.5Easyen
Polygraph0.018102093115%7.9Harden
Qualification Round0.003111243327%6.9Harden