#BZOJ2350. [Baltic2011]Tree Mirroring
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ID: 25713
Type: Default
1000ms
256MiB
Tried: 0
Accepted: 0
Difficulty: (None)
Uploaded By:
Hydro
[Baltic2011]Tree Mirroring
题目描述
输入格式
输出格式
7 7
1 2
2 3
3 4
4 5
5 6
6 7
7 1
NO
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