Problems from Programming Battle, contest Beta

	Add	Remove

Name	Fastest	Shortest	Total	Acc.	Ratio	Difficulty	Languages
Coupons	0.04	841	199	32	16%	9.2Hard	en
Forest Construction	0.00	641	322	63	20%	6.5Hard	en
Horse in Ambush	0.00	411	315	28	9%	9.1Hard	en