Problems from Central Europe Regional Contest (CERC) 2012

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Chemist's vows0.00433171648828%3.1Mediumen
Conservation0.16302290088631%4.9Mediumen
Darts0.03932304114049%2.1Easyen
Graphic Madness0.011807992121%7.5Harden
Jewel Heist0.8415612095727%5.5Harden
Kingdoms0.297123468023%7.0Harden
Non-boring sequences0.0758586325429%6.6Harden
The Dragon and the Knights0.177393065819%5.4Mediumen
Who Wants to Live Forever?0.014463734111%8.5Harden
Word Equations0.05100046110322%7.5Harden