第十二周-非连通图的深度优先遍历

程序中graph.h是图存储结构的“算法库”中的头文件，详情请单击链接…

main.cpp

#include <stdio.h>
#include <malloc.h>
#include "graph.h"
int visited[MAXV];     //定义存放节点的访问标志的全局数组
void DFS(ALGraph *G, int v)
{
    ArcNode *p;
    int w;
    visited[v]=1;
    printf("%d ", v);
    p=G->adjlist[v].firstarc;
    while (p!=NULL)
    {
        w=p->adjvex;
        if (visited[w]==0)
            DFS(G,w);
        p=p->nextarc;
    }
}

//采用深度优先搜索遍历非连通无向图
void DFS1(ALGraph *G)
{
    int i;
    for (i=0; i<G->n; i++)
        if (visited[i]==0)
            DFS(G,i);
}

int main()
{
    int i;
    ALGraph *G;
    int A[8][8]=
    {
        {0,1,0,1,0,0,0,0},
        {1,0,1,0,0,0,0,0},
        {0,1,0,1,1,0,0,0},
        {1,0,1,0,1,0,0,0},
        {0,0,1,1,0,0,0,0},
        {0,0,0,0,0,0,1,0},
        {0,0,0,0,0,1,0,1},
        {0,0,0,0,0,0,1,0},
    };
    ArrayToList(A[0], 8, G);
    for (i=0; i<G->n; i++)
        visited[i]=0; //访问标志数组初始化
    printf(" 非连通图的广度优先遍历:\n");
    DFS1(G);
    return 0;
}

运行结果：