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	20838	20073	96%	1.2Easy	en
Crne	0.00	20	1451	1260	87%	2.5Easy	en
Kemija	0.00	320	357	100	28%	8.6Hard	en
Pravokutni	0.14	432	82	65	79%	5.8Hard	en
Prva	0.00	75	1639	1563	95%	1.6Easy	en
Turbo	0.01	221	1425	1158	81%	4.6Medium	en