Problems from Google Code Jam 2010 Online Competition Africa

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Get to Work0.00343141461844%2.8Mediumen
Odd Man Out0.00517576952954%1.7Easyen
Polygraph0.018102743814%7.9Harden
Qualification Round0.003111854122%6.2Harden