Problems from Croatian Open Competition in Informatics 2007/2008, contest #3

	Add	Remove

Name	Fastest	Shortest	Authors	Full Solves	Ratio	Difficulty	Languages
Cetiri	0.00	59	3402	3148	93%	1.8Easy	en
Cudak	0.00	502	310	227	73%	5.9Hard	en
Dejavu	0.00	110	523	458	88%	2.8Medium	en
Oktalni	0.00	20	1653	1545	93%	1.7Easy	en
Redoks	0.23	1083	43	27	63%	7.6Hard	en
Tajna	0.00	91	1260	1163	92%	2.0Easy	en