Problems from CTU Open 2005

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
All Friends0.00685142726719%8.6Harden
Divisors0.00133259570927%5.7Harden
Emag Eht Htiw Em Pleh0.00287180895753%1.9Easyen
Failing Roads0.04384953739%7.1Harden
Help Me With The Game0.004352555112444%2.9Mediumen