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我居然写超时了，在另外一个题确实有质的飞跃，这题用了spfa才过了In Reply To:判负环用dfs(所谓的spfa的一种实现方式)很快，详细请参考WC2009论文《SPFA算法的优化及应用》 Posted by:BlueSkyThinker at 2009-09-05 19:39:21 Followed by: Post your reply here: |
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