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

	Add	Remove

Name	Fastest	Shortest	Total	Acc.	Ratio	Difficulty	Languages
Autori	0.00	5	57805	31701	55%	1.2Easy	en
Iks	0.00	296	735	357	49%	3.1Medium	en
Kaboom	0.01	5	58	22	38%	6.8Hard	en
Ograda	0.03	986	174	58	33%	6.7Hard	en
Palačinke	0.05	1766	59	11	19%	7.6Hard	en
Planina	0.00	5	24208	14473	60%	1.5Easy	en