Problems from Croatian Open Competition in Informatics 2006/2007, contest #5

	Add	Remove

Name	Fastest	Shortest	Authors	Full Solves	Ratio	Difficulty	Languages
Dvaput	0.02	473	1025	776	76%	4.2Medium	en
Ivana	0.00	319	158	130	82%	4.8Medium	en
Liga	0.00	510	255	157	62%	7.1Hard	en
Natrij	0.00	119	2807	2456	87%	3.2Medium	en
Tenis	0.00	441	409	346	85%	3.8Medium	en
Trik	0.00	31	15726	15046	96%	1.4Easy	en