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给组数据

Posted by kuailezhish at 2012-03-31 09:13:12 on Problem 2391
傻了,无解输-1。。。
6 6
10 0
0 3
0 7
3 0
0 2
0 1
1 2 120
5 2 80
5 1 20
5 6 30
6 1 110
4 3 30

ans:-1


10 9
1 0
0 0
0 0
0 1
0 1
0 1
0 1
0 1
0 1
0 1
2 1 10
3 1 4
4 3 2
5 3 5
6 2 11
7 5 1
8 6 7
9 4 1
10 2 10

ans:6

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