题意:求图中的连通块数,注意孤立的算自连通! 例如:6个顶点3条路径,其中路径为:1->2    4->5  1->3 那么有(1-2&&1->3) + (4->5) + (6) 共3个连通块! 解法:对每个节点宽搜! #include<iostream> #include<memory.h> #include<queue> using namespace std; ][]; ]; int N,M; int main(){…

Description Find connected component in undirected graph. Each node in the graph contains a label and a list of its neighbors. (A connected component of an undirected graph is a subgraph in which any two vertices are connected to each other by paths,…

题目介绍: 输入一个简单无向图,求出图中连通块的数目. Input 输入的第一行包含两个整数n和m,n是图的顶点数,m是边数.1<=n<=1000,0<=m<=10000. 以下m行,每行是一个数对v y,表示存在边(v,y).顶点编号从1开始. Output 单独一行输出连通块的数目. Sample Input 5 3 1 2 1 3 2 4 Sample Output 2 思路: 利用广度搜索,计算广度搜索的次数即为结果. 具体代码如下: #include <iostre…

题目描述: 输入一个简单无向图,求出图中连通块的数目 输入: 输入的第一行包含两个整数n和m,n是图的顶点数,m是边数.1<=n<=1000,0<=m<=10000. 以下m行,每行是一个数对v y,表示存在边(v,y).顶点编号从1开始. 题目分析: 利用深度优先搜索寻找连通块数,一趟深度优先搜索为一个连通块,深度优先搜索次数为块数. #include<iostream> #include<memory> using namespace std; cons…

E. Connected Components? time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output You are given an undirected graph consisting of n vertices and  edges. Instead of giving you the edges that exist i…

Discription You are given an undirected graph consisting of n vertices and  edges. Instead of giving you the edges that exist in the graph, we give you m unordered pairs (x, y) such that there is no edge between x and y, and if some pair of vertices…

E. Connected Components? You are given an undirected graph consisting of n vertices and edges. Instead of giving you the edges that exist in the graph, we give you m unordered pairs (x, y) such that there is no edge between x and y, and if some pair…

We already know of the large corporation where Polycarpus works as a system administrator. The computer network there consists of n computers and m cables that connect some pairs of computers. In other words, the computer network can be represented a…

292D - Connected Components D. Connected Components time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output We already know of the large corporation where Polycarpus works as a system administrato…

Given n nodes labeled from 0 to n - 1 and a list of undirected edges (each edge is a pair of nodes), write a function to find the number of connected components in an undirected graph. Example 1: 0          3 |          | 1 --- 2    4 Given n = 5 and…