Problems from Croatian Open Competition in Informatics 2007/2008, contest #2

	Add	Remove

Name	Fastest	Shortest	Total	Acc.	Ratio	Difficulty	Languages
Bijele	0.00	5	35576	20560	58%	1.3Easy	en
Crne	0.00	5	3290	1298	39%	2.5Easy	en
Kemija	0.00	320	1031	199	19%	8.6Hard	en
Pravokutni	0.14	442	275	74	27%	6.0Hard	en
Prva	0.00	75	2511	1568	62%	1.7Easy	en
Turbo	0.01	221	3440	1648	48%	4.4Medium	en