Problems from CTU Open 2005

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
All Friends0.00685144526919%8.6Harden
Divisors0.00133260171027%5.7Harden
Emag Eht Htiw Em Pleh0.00287182095953%1.8Easyen
Failing Roads0.043841003737%7.1Harden
Help Me With The Game0.004352593113544%2.9Mediumen