Problems from CTU Open 2010

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Arbitrage?0.0145789675484%3.7Mediumen
Bus Clock Display0.02299720735%7.6Harden
Bus Schedules0.092415321341%8.2Harden
God Save the i-th Queen0.0743317513175%5.5Harden
Hack Around the Lock0.061445411844%7.7Harden
Measuring Problem Difficulty0.04395725272%6.1Harden
The Easiest Problem Is This One0.00727255685194%1.5Easyen