Problems from CTU Open 2010

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Arbitrage?0.014574322118827%3.8Mediumen
Bus Clock Display0.02299743716%7.7Harden
Bus Schedules0.092415661218%8.5Harden
God Save the i-th Queen0.0743395733635%5.8Harden
Hack Around the Lock0.0614451272217%7.8Harden
Measuring Problem Difficulty0.043951206050%6.6Harden
The Easiest Problem Is This One0.00512929707555%1.6Easyen