Problems from CTU Open 2010

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Arbitrage?0.0145788374384%3.8Mediumen
Bus Clock Display0.02299719632%7.7Harden
Bus Schedules0.092415301137%8.4Harden
God Save the i-th Queen0.0743317012875%5.5Harden
Hack Around the Lock0.061445411844%7.7Harden
Measuring Problem Difficulty0.04395715172%6.1Harden
The Easiest Problem Is This One0.00727151674994%1.6Easyen