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	394	77	20%	5.9Hard	en
Jogurt	0.00	85	212	67	32%	7.2Hard	en
Prsteni	0.00	5	4801	2929	61%	1.5Easy	en
Sibice	0.00	5	26258	14471	55%	1.3Easy	en
Skener	0.00	5	8610	5453	63%	1.4Easy	en
Zbrka	0.01	5	715	230	32%	5.0Medium	en