Problems from Croatian Open Competition in Informatics 2008/2009, contest #4

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Datum0.00285867563296%1.6Easyen
Mjehuric0.00694217398394%1.6Easyen
Periodni0.001578221255%7.3Harden
Rot0.0034021218587%3.1Mediumen
Slikar0.011082635079%4.6Mediumen
Trezor0.00990302170%5.7Harden