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图中一定存在环？ 一定可以拓扑排序吗？ 我一直TLE。。。In Reply To:Re:可以先拓扑排序，然后dp求最短路。 Posted by:Sky2 at 2007-11-20 11:44:52 > 这个图一定可以拓扑排序吗？ 会不会出现环啊？ > 我怎么总是TLE，估计不是算法的问题，应该是死循环了。。。。 Followed by: Post your reply here: |
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