Problems from Central Europe Regional Contest (CERC) 2012

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Chemist's vows0.00433142043330%3.3Mediumen
Conservation0.16302268982631%4.8Mediumen
Darts0.03932227109849%2.3Easyen
Graphic Madness0.011807741216%7.6Harden
Jewel Heist0.8415611705231%6.3Harden
Kingdoms0.297123307824%7.1Harden
Non-boring sequences0.0779080524230%6.4Harden
The Dragon and the Knights0.177392235625%5.0Mediumen
Who Wants to Live Forever?0.014003974010%8.5Harden
Word Equations0.0510004066717%7.6Harden