Problems from CTU Open 2005

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
All Friends0.00685137225419%8.6Harden
Divisors0.00133233964828%5.5Harden
Emag Eht Htiw Em Pleh0.00287170691654%1.8Easyen
Failing Roads0.04408803544%7.1Harden
Help Me With The Game0.004352430107744%2.9Mediumen