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

Name	Fastest	Shortest	Total	Acc.	Ratio	Difficulty	Languages
Blokovi	0.02	122	35	15	43%	7.1Hard	en
DNA	0.00	53	803	321	40%	4.7Medium	en
Eko	0.04	86	1139	319	28%	4.6Medium	en
Križaljka	0.00	100	1889	1040	55%	1.9Easy	en
Popločavanje	0.11	853	289	75	26%	6.4Hard	en
Razbibriga	0.01	242	213	98	46%	4.9Medium	en