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posted @ 2019-11-12 17:46 QUEKI嶺冬 阅读(1) 评论(0) 推荐(0) 编辑
摘要: 【题意】n个点m条有向边,求单源最短路最长往返距离 【解题】建两个图 跑两遍spfa 不过有很多细节需要注意 #include<bits/stdc++.h> const int N = 1005; struct node{ int v,w; }; std::vector<node>g[3][N]; 阅读全文
posted @ 2019-11-12 00:41 QUEKI嶺冬 阅读(130) 评论(0) 推荐(0) 编辑
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