Problems from Central Europe Regional Contest (CERC) 2012

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Chemist's vows0.00433157046730%3.1Mediumen
Conservation0.16302280287131%4.7Mediumen
Darts0.03932272112550%2.2Easyen
Graphic Madness0.011807851922%7.5Harden
Jewel Heist0.8415611715230%6.3Harden
Kingdoms0.297123317824%7.1Harden
Non-boring sequences0.0779081624630%6.4Harden
The Dragon and the Knights0.177392305725%5.1Mediumen
Who Wants to Live Forever?0.014004094010%8.5Harden
Word Equations0.0510004066717%7.7Harden