Problems from Croatian Open Competition in Informatics 2009/2010, contest #4

Name	Fastest	Shortest	Total	Acc.	Ratio	Difficulty	Languages
Autori	0.00	5	47099	27093	58%	1.3Easy	en
Iks	0.00	432	636	302	47%	3.1Medium	en
Kaboom	0.01	708	33	15	45%	8.1Hard	en
Ograda	0.03	1052	152	50	33%	7.3Hard	en
Palačinke	0.05	1766	39	9	23%	7.7Hard	en
Planina	0.00	9	22748	13731	60%	1.6Easy	en