Problems from Programming Battle, contest Beta

	Add	Remove

Name	Fastest	Shortest	Total	Acc.	Ratio	Difficulty	Languages
Coupons	0.04	841	143	26	18%	8.9Hard	en
Forest Construction	0.00	641	276	55	20%	6.2Hard	en
Horse in Ambush	0.00	411	261	27	10%	9.2Hard	en