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	1205	370	31%	4.1Medium	en
Avion	0.00	5	9827	5342	54%	1.5Easy	en
Dugovi	0.02	795	199	58	29%	7.0Hard	en
Hrpa	0.00	5	117	52	44%	5.3Medium	en
Parket	0.00	71	974	507	52%	2.2Easy	en
Prosjek	0.00	76	309	95	31%	5.3Medium	en