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	317	72	23%	6.4Hard	en
Jogurt	0.00	85	148	62	42%	7.3Hard	en
Prsteni	0.00	5	4227	2628	62%	1.6Easy	en
Sibice	0.00	5	24536	13624	56%	1.4Easy	en
Skener	0.00	5	7487	4871	65%	1.4Easy	en
Zbrka	0.01	5	647	207	32%	5.2Medium	en