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Problem 2438 >> 再次希望加强数据
chenhesheng @ 2018-10-05 09:39:29
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input 3 1
1 2
output 0.666667




但是,就算我输出了0.133333,在bzoj上也能AC,所以希望继续加强数据!
chenhesheng @ 2018-10-05 10:04:51
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继续加强数据!!!
input:
12 24
6 12
11 5
6 5
7 11
9 6
6 2
4 2
12 8
3 4
1 4
1 3
10 5
11 10
9 3
12 7
8 7
12 4
3 10
10 9
10 8
12 9
12 10
2 11
5 12


output:
0.916667
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