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	1264	386	31%	4.1Medium	en
Avion	0.00	5	10176	5506	54%	1.4Easy	en
Dugovi	0.02	795	215	61	28%	7.0Hard	en
Hrpa	0.00	5	132	56	42%	5.0Medium	en
Parket	0.00	71	1011	529	52%	2.3Easy	en
Prosjek	0.00	76	342	104	30%	5.7Hard	en