Problems from Central Europe Regional Contest (CERC) 2012

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Chemist's vows0.0043342437689%3.1Mediumen
Conservation0.1130274262184%4.6Mediumen
Darts0.029399989389%2.1Easyen
Graphic Madness0.011807271556%8.2Harden
Jewel Heist0.721489886169%7.1Harden
Kingdoms0.297121005858%6.8Harden
Non-boring sequences0.0758523014764%6.3Harden
The Dragon and the Knights0.17739665685%5.7Harden
Who Wants to Live Forever?0.01321823543%8.4Harden
Word Equations0.051000864957%6.8Harden