Problems from Croatian Open Competition in Informatics 2008/2009, contest #3

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Binary search tree0.011612065104551%5.8Harden
Cross0.00104136928978%4.1Mediumen
Kemija0.00265419511994%1.7Easyen
Matrica0.011210342265%6.4Harden
Najkraci0.341006463372%6.9Harden
Pet0.0039169451618195%1.3Easyen