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	37727	21626	57%	1.2Easy	en
Crne	0.00	5	3634	1425	39%	2.6Easy	en
Kemija	0.00	320	1099	208	19%	8.6Hard	en
Pravokutni	0.14	432	308	84	27%	5.8Hard	en
Prva	0.00	75	2687	1672	62%	1.7Easy	en
Turbo	0.01	221	4009	1860	46%	4.7Medium	en