Problems from CTU Open 2010

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Arbitrage?0.014574535124427%4.0Mediumen
Bus Clock Display0.02299760712%7.8Harden
Bus Schedules0.092415831113%8.7Harden
God Save the i-th Queen0.0743398434835%5.7Harden
Hack Around the Lock0.0614451442417%7.9Harden
Measuring Problem Difficulty0.043951546240%6.4Harden
The Easiest Problem Is This One0.00513819757555%1.6Easyen