Problems from Croatian Open Competition in Informatics 2006/2007, contest #2

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
ABC0.0032166951474688%1.8Easyen
Kolone0.0010969658484%3.1Mediumen
R20.0019398013818696%1.3Easyen
Sjecista0.00111555145994%1.8Easyen
Stol0.0122117914581%4.9Mediumen
Straza0.001651412356%7.2Harden