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	1340	400	30%	4.1Medium	en
Avion	0.00	5	10603	5700	54%	1.4Easy	en
Dugovi	0.02	795	236	66	28%	6.6Hard	en
Hrpa	0.00	5	166	68	41%	4.5Medium	en
Parket	0.00	71	1052	554	53%	2.1Easy	en
Prosjek	0.00	76	373	112	30%	5.2Medium	en