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

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Name	Fastest	Shortest	Authors	Full Solves	Ratio	Difficulty	Languages
Bijele	0.00	30	21230	20461	96%	1.2Easy	en
Crne	0.00	6	1500	1305	87%	2.5Easy	en
Kemija	0.00	320	361	101	28%	8.6Hard	en
Pravokutni	0.14	432	81	64	79%	5.8Hard	en
Prva	0.00	75	1679	1600	95%	1.6Easy	en
Turbo	0.01	221	1463	1191	81%	4.6Medium	en