使用bfs的图中节点之间的距离

I've written the following code:

我写了以下代码:

void bfs(graph *g, int start)
{
    int i;
    int visited[MAXVERTS], next;
    for (i = 0; i < g -> nodes; i++)
        visited[i] = 0;
    visited[start] = 1;
    printf("%d", start);
    queuePtr q;
    q = QueueCreate();
    QueueEnter(q,start);
    while(!QueueIsEmpty(q))
    {
        next=QueueDelete(q);
        node *p=g->adjList[next];
        while(p)
        {  
            if(!visited[p->index])  
                visited[p->index] = 1;  
            QueueEnter(q,p->index);  
        }  
        p=p->link;  
    }  
}  
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