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	1202	370	31%	4.1Medium	en
Avion	0.00	5	9732	5290	54%	1.4Easy	en
Dugovi	0.02	795	194	56	29%	7.4Hard	en
Hrpa	0.00	5	117	52	44%	5.3Medium	en
Parket	0.00	71	973	506	52%	2.3Easy	en
Prosjek	0.00	76	310	96	31%	5.3Medium	en