Problems from Central Europe Regional Contest (CERC) 2012

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Chemist's vows 323 87 27% 0.00 91 71 78% 5.1
Conservation 643 214 33% 0.27 128 113 88% 4.2
Darts 1274 613 48% 0.03 475 413 87% 2.6
Graphic Madness 63 11 17% 0.01 14 11 79% 6.7
Jewel Heist 97 27 28% 0.84 30 23 77% 7.2
Kingdoms 273 64 23% 0.29 74 44 59% 6.2
Non-boring sequences 644 195 30% 0.07 114 75 66% 6.3
The Dragon and the Knights 108 37 34% 0.20 37 34 92% 4.8
Who Wants to Live Forever? 224 24 11% 0.01 46 22 48% 7.5
Word Equations 118 22 19% 0.05 34 21 62% 8.2