// Note that we are choosing to use the (exact) same objects in the Edge class // and in the GraphShow and GraphWeighted classes on purpose - this MIGHT NOT // be something you want to do in your own code, but for sake of readability // we've decided to go with this option so...
importjava.util.Scanner;publicclassMain {publicstaticvoidmain(String[] args) { Scanner sc=newScanner(System.in);intN = sc.nextInt();//顶点的个数intM = sc.nextInt();//边的个数intmax = Integer.MAX_VALUE;//无穷大,设为不可达int[][] map =newint[N][N];//存储各顶点之间的距离for(i...
应用1:Leetcode.743 题目 题目分析 代码实现 应用2:Leetcode.1514 题目 解题思路 代码实现 应用3:Leetcode.1631 题目 解题思路 代码实现 总结 Dijkstra算法 给定一个源顶点s从一组顶点V在加权有向图中,其中所有边权重w(u,v)均是非负的,找到最短路径权重d(s,v)从源头s对于所有顶点v出现在Graph中。 Dijkstra...
Java语言: import java.util.*;classGraph{private int V;private List<List<iPair>>adj;Graph(int V){this.V=V;adj=newArrayList<>();for(int i=0;i<V;i++){adj.add(newArrayList<>());}}voidaddEdge(int u,int v,int w){adj.get(u).add(newiPair(v,w));adj.get(v).add(newiPair(u,w...
package com.harrison.class11;import java.util.HashMap;import java.util.HashSet;import java.util.Map.Entry;import com.harrison.class11.Code01_NodeEdgeGraph.*;public class Code07_dijkstra {// 从from点到key的最短距离是valuepublic static HashMap<Node, Integer> dijkstra1(Node from) {HashMap<Node...
to*Node}// 点结构的描述type Node struct{value intinint out int nexts[]*Node edges[]*Edge}type Graph struct{nodes map[int]*Node edges map[*Edge]struct{}} *** [左神java代码](https://github.com/algorithmzuo/algorithmbasic2020/blob/master/src/class17/Code01_Dijkstra.java)...
// Driver's code int main() { // create the graph given in above figure int V = 9; Graph g(V); // making above shown graph g.addEdge(0, 1, 4); g.addEdge(0, 7, 8); g.addEdge(1, 2, 8); g.addEdge(1, 7, 11); ...
packageclass08;importjava.util.Stack;publicclassCode04_ReverseStackUsingRecursive {publicstaticvoidreverse(Stack<Integer>stack) {if(stack.isEmpty()) {return; }inti = f(stack);//出来最后一个reverse(stack); stack.push(i);//压回去}publicstaticintf(Stack<Integer> stack) {//见上文//...public...
// Driver's code int main() { // create the graph given in above figure int V = 9; Graph g(V); // making above shown graph g.addEdge(0, 1, 4); g.addEdge(0, 7, 8); g.addEdge(1, 2, 8); g.addEdge(1, 7, 11); ...
最短路算法:最短路径算法是图论研究中,一个经典算法问题;旨在寻找图(由结点和路径组成的)中两结点之间的最短路径。 确定起点的最短路径问题:已知起始点,求最短路径问题。适合使用Dijkstra算法;(单源最短路径问题) 全局最短路径问题:求图中所有的最短路径,适用于Floyed-Warshall 算法;(多源最短路径问题) ...