Problems from CTU Open 2010

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Arbitrage? 1752 357 20% 0.02 263 212 81% 3.6
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 680 216 32% 0.28 101 68 67% 6.4
Hack Around the Lock 85 13 15% 0.06 18 9 50% 8.1
Measuring Problem Difficulty 40 23 57% 0.04 26 21 81% 6.4
The Easiest Problem Is This One 6088 3543 58% 0.00 3274 3124 95% 1.5