Problems from Central Europe Regional Contest (CERC) 2012

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Chemist's vows0.00433184052529%3.1Mediumen
Conservation0.16302309293630%4.9Mediumen
Darts0.02932420119649%2.1Easyen
Graphic Madness0.0118071102220%7.4Harden
Jewel Heist0.7514892346528%6.3Harden
Kingdoms0.297123598323%7.0Harden
Non-boring sequences0.0758590626029%6.7Harden
The Dragon and the Knights0.177393165919%5.3Mediumen
Who Wants to Live Forever?0.014004855010%8.4Harden
Word Equations0.05100050210521%7.7Harden