Problems from Central Europe Regional Contest (CERC) 2012

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Chemist's vows0.00433183252329%3.1Mediumen
Conservation0.16302307793430%4.9Mediumen
Darts0.02932379118050%2.2Easyen
Graphic Madness0.0118071062221%7.3Harden
Jewel Heist0.7514892296528%6.2Harden
Kingdoms0.297123538324%7.0Harden
Non-boring sequences0.0758590026029%6.7Harden
The Dragon and the Knights0.177393105919%5.3Mediumen
Who Wants to Live Forever?0.014004795010%8.4Harden
Word Equations0.05100048610421%7.6Harden