Problems from Croatian Open Competition in Informatics 2010/2011, contest #4

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Astro0.0035638431682%4.1Mediumen
Avion0.00405324508195%1.4Easyen
Dugovi0.02795835667%6.9Harden
Hrpa0.0064655280%4.7Mediumen
Parket0.007155851192%2.1Easyen
Prosjek0.00761189177%5.2Mediumen