Problems from Croatian Open Competition in Informatics 2010/2011, contest #4

	Add	Remove

Name	Fastest	Shortest	Total	Acc.	Ratio	Difficulty	Languages
Astro	0.00	356	1213	373	31%	4.2Medium	en
Avion	0.00	5	9891	5368	54%	1.5Easy	en
Dugovi	0.02	795	199	58	29%	7.0Hard	en
Hrpa	0.00	5	118	53	45%	5.2Medium	en
Parket	0.00	71	983	515	52%	2.3Easy	en
Prosjek	0.00	76	310	96	31%	5.4Medium	en