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	57393	31511	55%	1.2Easy	en
Iks	0.00	296	732	354	48%	3.1Medium	en
Kaboom	0.01	5	53	20	38%	7.4Hard	en
Ograda	0.03	986	174	58	33%	6.7Hard	en
Palačinke	0.05	1766	56	10	18%	7.6Hard	en
Planina	0.00	5	24132	14433	60%	1.5Easy	en