图的相关操作

Posted 2020-12-01 zhishoumuguinian

  1 #include <iostream>
  2 
  3 using namespace std;
  4 const int MaxNum = 100;
  5 
  6 typedef struct srcNode {
  7     int Vem;
  8     struct srcNode * next;
  9 } srcNode;
 10 
 11 typedef struct vNode {
 12     char data;
 13     srcNode *src;
 14 } vNode;
 15 
 16 typedef struct GNode {
 17     int vNum, srcNum;
 18     vNode vNodeList[MaxNum];
 19 } Graph, GNode;
 20 
 21 
 22 void BFS(Graph *G) {
 23     int v[MaxNum*MaxNum];
 24     int front = -1, rear = -1;
 25     bool visited[MaxNum];
 26     for(int i=0; i<G->vNum; ++i) {
 27         visited[i] = false;
 28     }
 29     v[++rear] = 0;
 30     while(rear!=front) {
 31         int vnow = v[++front];
 32         if(!visited[vnow]) {
 33             
 34             cout<<G->vNodeList[vnow].data<<endl;
 35             visited[vnow] = true;
 36             srcNode *p = G->vNodeList[vnow].src;
 37             while(p) {
 38                 v[++rear] = p->Vem;
 39                 p = p->next;
 40             }
 41         
 42         }
 43 //            cout<<"队列中的元素：";
 44 //            for(int k=front+1; k<=rear; k++){
 45 //                cout<< G->vNodeList[v[k]].data <<" ";
 46 //            }
 47 //            cout<<endl;
 48     }
 49 }
 50 
 51 
 52 void DFS(Graph *G){
 53     int stack[MaxNum*MaxNum];
 54     int top = -1;
 55     bool visited[G->vNum];
 56     for(int i=0; i<G->vNum; ++i){
 57         visited[i] = false;
 58     }
 59     
 60     stack[++top] = 0;
 61     while(top!=-1){
 62         int vnow = stack[top--];
 63         if(!visited[vnow]){
 64             cout<<G->vNodeList[vnow].data<<endl;
 65             visited[vnow] = true;
 66             srcNode *p = G->vNodeList[vnow].src;
 67             while(p) {
 68                 stack[++top] = p->Vem;
 69                 p = p->next;
 70             }
 71         }
 72     }
 73 } 
 74 
 75  
 76 Graph *createGraph(char v[], int src[][6], int n) {
 77     Graph *G = new Graph();
 78     G->srcNum = 7;
 79     G->vNum = 6;
 80     for(int i=0; i<n; i++) {
 81         G->vNodeList[i].data = v[i];
 82         G->vNodeList[i].src = NULL;
 83 
 84         for(int j=0; j<n; j++) {
 85             if(src[i][j] != 0) {
 86                 srcNode *srcNow = new srcNode();
 87                 srcNow->Vem = j;
 88                 srcNow->next = G->vNodeList[i].src;
 89                 G->vNodeList[i].src = srcNow;
 90             }
 91         }
 92     }
 93     return G;
 94 }
 95 
 96 void show(Graph *G) {
 97     for(int i=0; i<G->vNum; i++) {
 98         srcNode *p = G->vNodeList[i].src;
 99         while(p) {
100             cout<<G->vNodeList[p->Vem].data<<"  ";
101             p = p->next;
102         }
103         cout<<endl;
104     }
105 }
106 
107 int main() {
108     char v[]= {‘a‘, ‘b‘, ‘c‘, ‘d‘, ‘e‘, ‘f‘};
109     int src[6][6]= {
110         {0,1,1,0,1,0},
111         {1,0,0,0,1,0},
112         {1,0,0,0,0,0},
113         {0,0,0,0,1,1},
114         {1,1,0,1,0,1},
115         {0,0,0,1,1,0},
116     };
117 
118     Graph *G = createGraph(v, src, 6);
119 //    show(G);
120 //    BFS(G);
121     DFS(G);
122 }