Problems from Croatian Open Competition in Informatics 2011/2012, contest #5

	Add	Remove

Name	Fastest	Shortest	Total	Acc.	Ratio	Difficulty	Languages
Blokovi	0.02	122	43	17	40%	7.0Hard	en
DNA	0.00	53	910	357	39%	4.8Medium	en
Eko	0.04	86	1197	345	29%	4.5Medium	en
Križaljka	0.00	100	2001	1102	55%	1.9Easy	en
Popločavanje	0.11	853	322	78	24%	6.4Hard	en
Razbibriga	0.01	242	219	101	46%	4.8Medium	en