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Re:用spfa求两次最短路，如下：

Posted by dingjian0312 at 2011-12-14 19:48:58 on Problem 2135
In Reply To:用spfa求两次最短路，如下： Posted by:Aidway at 2011-09-08 22:31:17 
4 5
1 2 1
1 3 100
2 4 100
2 3 1
3 4 1

试试这组数据。
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