Problems from CTU Open 2010

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Arbitrage? 1760 357 20% 0.02 265 212 80% 3.7
Bus Clock Display 41 6 15% 0.02 14 6 43% 7.9
Bus Schedules 19 5 26% 0.16 9 5 56% 6.5
God Save the i-th Queen 657 217 33% 0.28 102 69 68% 6.3
Hack Around the Lock 85 13 15% 0.06 18 9 50% 8.0
Measuring Problem Difficulty 40 23 57% 0.04 26 21 81% 6.5
The Easiest Problem Is This One 6211 3617 58% 0.00 3347 3192 95% 1.5