[Acwing] 算法基础课总结三搜索与图论

*DDL_GzmBlog 发布时间：2022-05-07 16:47:47 ，浏览量：1

- - DFS
  - - 1.排列数字
    - 2.n-皇后
  - BFS
  - - 1. 走迷宫
    - 2.八数码
  - 树与图的深度优先遍历
  - - 1.树的重心
    - 2. 图中点的层次
  - 拓扑排序
  - - 1.拓扑排序
  - Dijkstra
  - - 1.Dijkstra求最短路 I
    - 2.Dijkstra求最短路 II
  - Bellman-Ford
  - 1.有边数限制的最短路
  - Spfa
  - 1.Spfa求最短路
  - - 2.spfa判断负环
  - Floyd
  - 1.Floyd求最短路

DFS 1.排列数字

对于每个节点,只能选择没有用过的数,因此需要一个 s t [ ] st[] st[] 数组,当我们枚举到底层的时候,需要清空状态

void dfs(int u){
	if( u ==  n+1){
		for(int i = 1;im;
	for(int i=1;i>a>>b>>c;
		g[a].pb({b,c});
	}
	dij();
	if(dist[n] == INF) cout


    
        
        
        
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[Acwing] 算法基础课总结 三 搜索与图论

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[Acwing] 算法基础课总结三搜索与图论