Problems from Central Europe Regional Contest (CERC) 2012

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Chemist's vows0.0043338834890%3.0Mediumen
Conservation0.1130270559484%4.5Mediumen
Darts0.029398388290%2.1Easyen
Graphic Madness0.011807281554%8.0Harden
Jewel Heist0.721489704970%6.0Harden
Kingdoms0.297121005757%6.9Harden
Non-boring sequences0.0758521213463%6.5Harden
The Dragon and the Knights0.17739655585%5.8Harden
Who Wants to Live Forever?0.01400813543%8.4Harden
Word Equations0.051000864755%7.4Harden