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

	Add	Remove

Name	Fastest	Shortest	Total	Acc.	Ratio	Difficulty	Languages
Blokovi	0.02	100	63	16	25%	7.1Hard	en
DNA	0.00	53	929	362	39%	4.8Medium	en
Eko	0.04	86	1404	429	31%	3.6Medium	en
Križaljka	0.00	100	2147	1164	54%	1.8Easy	en
Popločavanje	0.11	853	359	83	23%	7.2Hard	en
Razbibriga	0.01	242	221	95	43%	6.2Hard	en