Problems from Central Europe Regional Contest (CERC) 2012

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Chemist's vows0.0043341236689%3.0Mediumen
Conservation0.1130274262084%4.7Mediumen
Darts0.029399989289%2.1Easyen
Graphic Madness0.011807271556%8.1Harden
Jewel Heist0.721489865969%7.2Harden
Kingdoms0.297121005858%6.7Harden
Non-boring sequences0.0758523014663%6.3Harden
The Dragon and the Knights0.17739665685%5.4Mediumen
Who Wants to Live Forever?0.01321813543%8.4Harden
Word Equations0.051000864856%7.2Harden