Problems from Google Code Jam 2010 Online Competition Africa

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Get to Work0.00343119356547%2.6Easyen
Odd Man Out0.00515969887556%1.6Easyen
Polygraph0.018102113115%7.9Harden
Qualification Round0.003111273427%6.8Harden