Problems from Croatian Open Competition in Informatics 2015/2016, contest #5

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Name	Fastest	Shortest	Authors	Full Solves	Ratio	Difficulty	Languages
Multigram	0.00	114	675	611	91%	2.3Easy	en
Oop	0.18	1326	144	50	35%	8.6Hard	en
Perica	0.01	119	521	456	88%	3.5Medium	en
Podnizovi	0.04	980	27	12	44%	8.0Hard	en
Poplava	0.01	117	236	208	88%	4.0Medium	en
Zamka	0.00	61	10780	10342	96%	1.4Easy	en