图广度优先搜素BFS(邻接表)C/C++
#include <bits/stdc++.h>
using namespace std;
typedef char VertexType;
typedef int EdgeType;
typedef struct EdgeNode{
int adjvex;
int weight;
EdgeNode *nextedge;
}EdgeNode;
typedef struct VNode{
int visited;
VertexType data;
EdgeNode *firstedge;
}VNode;
struct ALGraphStruct{
VNode vexs[100];
int vertexnum;
int edgenum;
};
typedef struct ALGraphStruct *ALGraph;
ALGraph CreateALGraph()
{
ALGraph g=(ALGraph)malloc(sizeof(struct ALGraphStruct));
g->vertexnum=0;
g->edgenum=0;
return g;
}
void BFS(ALGraph g,int k)
{
queue <int> q;
q.push(k);
g->vexs[k].visited=1;
int i;
while(!q.empty()){
i=q.front();
q.pop();
for(EdgeNode *p=g->vexs[i].firstedge;p!=NULL;p=p->nextedge){
if(g->vexs[p->adjvex].visited==0){
q.push(p->adjvex);
g->vexs[p->adjvex].visited=1;
}
}
}
}