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	60707	32867	54%	1.3Easy	en
Iks	0.00	296	820	395	48%	3.0Medium	en
Kaboom	0.01	5	73	22	30%	6.9Hard	en
Ograda	0.03	986	195	60	31%	6.6Hard	en
Palačinke	0.05	1766	74	11	15%	7.6Hard	en
Planina	0.00	5	24920	14902	60%	1.5Easy	en