Problems from Central Europe Regional Contest (CERC) 2012

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Chemist's vows0.00433184652729%3.1Mediumen
Conservation0.16302310394030%4.8Mediumen
Darts0.02932454121049%2.1Easyen
Graphic Madness0.0118071142219%7.4Harden
Jewel Heist0.7514892386527%6.3Harden
Kingdoms0.297123668423%7.0Harden
Non-boring sequences0.0758591826128%6.7Harden
The Dragon and the Knights0.177393226019%5.3Mediumen
Who Wants to Live Forever?0.014004905110%8.3Harden
Word Equations0.05100051510520%7.3Harden