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我跟你一样，仔细想下才知道In Reply To:题目描述的数据范围错误 Posted by:418xiaotao at 2011-01-07 17:36:11 建图时需要点的数目 = 题目给的点个数 + 新建的源点、汇点
需要边的数目 = 原来双向边的数目（极端情况下就是s的1000条）+ 每个点连向源汇点的数目（极端情况下是点的个数m的200个）
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