Problems from Programming Battle, contest Beta

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Coupons 92 16 17% 0.04 19 9 47% 9.1
Forest Construction 159 36 23% 0.00 35 28 80% 6.8
Horse in Ambush 195 17 9% 0.00 45 15 33% 9.4