Problems from Central Europe Regional Contest (CERC) 2012

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Chemist's vows0.0043338634690%3.0Mediumen
Conservation0.1130269058184%4.7Mediumen
Darts0.029396686690%2.1Easyen
Graphic Madness0.011807271556%7.7Harden
Jewel Heist0.721489704970%5.5Harden
Kingdoms0.297121005757%6.6Harden
Non-boring sequences0.0758521013363%6.4Harden
The Dragon and the Knights0.17739655585%5.4Mediumen
Who Wants to Live Forever?0.01400813543%8.5Harden
Word Equations0.051000864755%7.6Harden