Problems from CTU Open 2010

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Arbitrage?0.014573770101127%4.1Mediumen
Bus Clock Display0.02299731723%7.8Harden
Bus Schedules0.092415531121%8.2Harden
God Save the i-th Queen0.0755186728933%6.2Harden
Hack Around the Lock0.0615531142320%8.1Harden
Measuring Problem Difficulty0.04790965254%6.6Harden
The Easiest Problem Is This One0.007312362688556%1.6Easyen