Problems from Central Europe Regional Contest (CERC) 2012

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Chemist's vows0.0043339235089%3.0Mediumen
Conservation0.1130273461484%4.7Mediumen
Darts0.029399188689%2.1Easyen
Graphic Madness0.011807271556%8.0Harden
Jewel Heist0.721489724968%6.3Harden
Kingdoms0.297121005858%6.7Harden
Non-boring sequences0.0758522113862%6.5Harden
The Dragon and the Knights0.17739645484%5.8Harden
Who Wants to Live Forever?0.01321813543%8.4Harden
Word Equations0.051000864856%7.3Harden