Problems from Google Code Jam 2010 Online Competition Africa

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Get to Work0.00343141561944%2.7Easyen
Odd Man Out0.00517596954054%1.6Easyen
Polygraph0.018102763914%7.1Harden
Qualification Round0.003111854122%6.2Harden