Problems from Croatian Open Competition in Informatics 2006/2007, contest #4

	Add	Remove

Name	Fastest	Shortest	Total	Acc.	Ratio	Difficulty	Languages
Ispiti	0.06	1400	324	75	23%	6.4Hard	en
Jogurt	0.00	85	154	63	41%	7.7Hard	en
Prsteni	0.00	5	4427	2733	62%	1.6Easy	en
Sibice	0.00	5	25045	13864	55%	1.5Easy	en
Skener	0.00	5	7846	5074	65%	1.4Easy	en
Zbrka	0.01	5	665	212	32%	5.3Medium	en