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

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Cetiri	2056	1103	54%	0.00	1074	989	92%	1.7
Cudak	224	77	34%	0.00	74	54	73%	5.8
Dejavu	316	118	37%	0.01	133	103	77%	4.8
Oktalni	1013	561	55%	0.00	547	515	94%	1.8
Redoks	61	20	33%	0.23	18	14	78%	6.6
Tajna	809	460	57%	0.00	452	417	92%	2.2