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WA的注意一下

Posted by zig_zag at 2013-02-19 09:18:57 on Problem 2762
编表的边数注意初始化。
强连通分量的总数注意初始化。
队列head tail注意初始化。
tarjan的时间戳注意初始化。
tarjan的访问标记注意初始化。
topo的入度注意初始化。
挺坑的,遇到这种Case的题目一定要多检查几遍。

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