#BZOJ3197. [Sdoi2013]assassin
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ID: 26560
Type: Default
1000ms
256MiB
Tried: 0
Accepted: 0
Difficulty: (None)
Uploaded By:
Hydro
[Sdoi2013]assassin
题目描述
输入格式
输出格式
4
1 2
2 3
3 4
0 0 1 1
1 0 0 0
1
f提示
