Problems from Programming Battle, contest Beta

	Add	Remove

Name	Fastest	Shortest	Total	Acc.	Ratio	Difficulty	Languages
Coupons	0.04	841	178	32	18%	9.2Hard	en
Forest Construction	0.00	641	295	62	21%	6.5Hard	en
Horse in Ambush	0.00	475	286	26	9%	9.0Hard	en