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把STL的源码打开你会看到一堆DEBUG。。再用性能分析发现这些玩意占了大多数时间

Posted by lsdnlgd at 2010-04-20 18:46:27 on Problem 1724
In Reply To:(DFS) 用vector做邻接表就TLE,用Node* next来弄就46MS. vector怎么这么慢阿。。。 Posted by:Hacker_QC at 2010-03-07 15:59:02
牺牲速度保证稳定性。。。。

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