#BZOJ1486. [HNOI2009]最小圈
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ID: 24848
Type: Default
1000ms
256MiB
Tried: 0
Accepted: 0
Difficulty: (None)
Uploaded By:
Hydro
[HNOI2009]最小圈
题目描述
输入格式
输出格式
4 5
1 2 5
2 3 5
3 1 5
2 4 3
4 1 3
3.66666667
f提示