数据结构【完整代码】之(C语言实现【图的存储创建遍历】邻接矩阵与邻接表)
程序员文章站
2023-12-25 18:05:09
...
零、编码前的准备
1.构画草图:
2.测试数据:
邻接表的DFS与BFS测试数据:
4 5
ABCD
0 1
0 2
0 3
1 2
3 2
邻接矩阵的DFS与BFS测试数据:
4 5
ABCD
0 1 5
0 2 10
0 3 10
1 2 15
3 2 30
一、邻接矩阵
包含四个文件的代码和一张测试效果图:
- AdjacencyMatrix.h文件: 构建邻接矩阵的存储结构与邻接矩阵的创建函数
- DBFSAdjacencyMatrix.h文件: 构建邻接矩阵的深度优先遍历与广度优先遍历函数
- StackAndQueue.h文件: 应广度优先遍历所需,提供队列的基本操作
- test.cpp文件: 用于测试
- 效果图:(如下)
效果图:
AdjacencyMatrix.h文件:
#include<stdio.h>
#include<stdlib.h>
#define MAXVEX 100
#define INFINITY 65535
typedef char VertexType;
typedef int EdgeType;
typedef struct{
VertexType vexs[MAXVEX]; //顶点表
EdgeType arc[MAXVEX][MAXVEX]; //邻接矩阵
int numVertexes, numEdges; //图中当前顶点数和边数
}GraphMatrix;
void CreateGraphMatrix(GraphMatrix *G){ //无向图的创建
int i, j, k, w;
printf("输入顶点数和边数:\n");
scanf("%d%d", &G->numVertexes, &G->numEdges);
getchar();
for(i = 0; i < G->numVertexes; i++){
scanf("%c", &G->vexs[i]);
}
for(i = 0; i < G->numVertexes; i++){
for(j = 0; j < G->numVertexes; j++){
G->arc[i][j] = INFINITY; //邻接矩阵初始化
}
}
for(k = 0; k < G->numEdges; k++){
printf("输入边(vi,vj)上的下标i,下标j和权w:\n");
scanf("%d%d%d", &i, &j, &w);
G->arc[i][j] = w; //输入边(vi,vj)上的权w
G->arc[j][i] = G->arc[i][j]; //因为是无向图,矩阵对称
}
}
DBFSAdjacencyMatrix.h文件:
#include"AdjacencyMatrix.h"
#include"StackAndQueue.h"
#define MAX 100
int visited[MAX];
void BFSTraverse(GraphMatrix GM){
int i, j;
SqQueue Q;
for(i = 0; i < GM.numVertexes; i++){
visited[i] = FALSE;
}
InitQueue(&Q); //初始化一辅助用的队列
for(i = 0; i < GM.numVertexes; i++){
if(!visited[i]){
visited[i] = TRUE; //设置当前顶点访问过
printf("%c ", GM.vexs[i]);
EnQueue(&Q, i);
while(QueueLength(Q) > 0){
DeQueue(&Q, &i);
for(j = 0; j < GM.numVertexes; j++){
if(GM.arc[i][j] > 0 && GM.arc[i][j] != INFINITY && !visited[j]){ //判断其它顶点若与当前顶点存在边且未访问过
visited[j] = TRUE;
printf("%c ", GM.vexs[j]);
EnQueue(&Q, j);
}
}
}
}
}
}
void DFS(GraphMatrix GM, int i){
int j;
visited[i] = TRUE;
printf("%c ", GM.vexs[i]);
for(j = 0; j < GM.numVertexes; j++){
if(GM.arc[i][j] > 0 && GM.arc[i][j] != INFINITY && !visited[j]){
DFS(GM, j);
}
}
}
void DFSTraverse(GraphMatrix GM){
int i;
for(i = 0; i < GM.numVertexes; i++){
visited[i] = FALSE;
}
for(i = 0; i < GM.numVertexes; i++){
if(!visited[i]){
DFS(GM, i);
}
}
}
StackAndQueue.h文件:
#include<stdio.h>
#include <string.h>
#define OK 1
#define ERROR 0
#define TRUE 1
#define FALSE 0
#define MAXSIZE 20
typedef int Status;
//---------------栈
typedef char SElemType;
typedef struct{
SElemType data[MAXSIZE];
int top; //用于栈顶指针
}SqStack;
Status InitStack(SqStack *S){
for(int i = 0; i < MAXSIZE; i++){
S->data[i] = ' '; //用0初始化
}
S->top = -1;
}
Status StackSize(SqStack S){
return (S.top+1);
}
Status Push(SqStack *S, SElemType e){ //------进栈
if(S->top == MAXSIZE - 1){ //栈满
return ERROR;
}
S->top++; //栈顶指针增加一
S->data[S->top] = e; //将新插入元素赋值给栈顶空间
return OK;
}
Status Pop(SqStack *S, SElemType *e){
if(S->top == -1){ //栈空
return ERROR;
}
*e = S->data[S->top];
S->top--;
return OK;
}
//-------------队列
typedef int QElemType;
typedef struct{
QElemType data[MAXSIZE];
int front;
int rear;
}SqQueue;
Status InitQueue(SqQueue *Q){
Q->front = 0;
Q->rear = 0;
return OK;
}
int QueueLength(SqQueue Q){
return (Q.rear - Q.front +MAXSIZE) % MAXSIZE;
}
Status EnQueue(SqQueue *Q, QElemType e){ //入队列
if((Q->rear + 1) % MAXSIZE == Q->front){ //队列满
return ERROR;
}
Q->data[Q->rear] = e;
Q->rear = (Q->rear + 1) % MAXSIZE;
return OK;
}
Status DeQueue(SqQueue *Q, QElemType *e){ //出队列
if(Q->front == Q->rear){
return ERROR;
}
*e = Q->data[Q->front];
Q->front = (Q->front + 1) % MAXSIZE;
return OK;
}
test.cpp文件:
#include"DBFSAdjacencyMatrix.h"
int main(){
GraphMatrix GM;
printf("-------------------邻接矩阵的【创建】-------------------\n");
CreateGraphMatrix(&GM);
printf("\n-------------------邻接矩阵的【DFS】-------------------\n");
DFSTraverse(GM);
printf("\n-------------------邻接矩阵的【BFS】-------------------\n");
BFSTraverse(GM);
}
二、邻接表
包含四个文件的代码和一张测试效果图:
- AdjacencyList.h文件: 构建邻接表的存储结构与邻接表的创建函数
- DBFSAdjacencyList.h文件: 构建邻接表的深度优先遍历与广度优先遍历函数
- StackAndQueue.h文件: 应广度优先遍历所需,提供队列的基本操作
- test.cpp文件: 用于测试
- 效果图:(如下)
效果图:
AdjacencyList.h文件:
#include<stdio.h>
#include<stdlib.h>
#define MAXVEX 100
#define INFINITY 65535
typedef char VertexType;
typedef int EdgeType;
typedef struct EdgeNode{ //边表结点
int adjvex; //邻接点域,存储该顶点对应的下标
EdgeType weight; //权值
struct EdgeNode *next;
}EdgeNode;
typedef struct VertexNode{ //顶点表结点
VertexType data; //顶点域,存储顶点信息
EdgeNode *firstedge; //边表头指针
}VertexNode, AdjList[MAXVEX];
typedef struct{
AdjList adjList;
int numVertexes, numEdges; //图中当前顶点数和边数
}GraphAdjList;
void CreateALGraph(GraphAdjList *G){ //无向图的创建
int i, j, k;
EdgeNode *e;
printf("输入顶点数和边数:\n");
scanf("%d%d", &G->numVertexes, &G->numEdges);
getchar();
for(i = 0; i < G->numVertexes; i++){
scanf("%c", &G->adjList[i].data);
G->adjList[i].firstedge = NULL;
}
for(k = 0; k < G->numEdges; k++){
printf("输入边(vi,vj)上的下标i,下标j:\n");
scanf("%d%d", &i, &j); //输入边(vi,vj)
e = (EdgeNode *)malloc(sizeof(EdgeNode));
e->adjvex = j;
e->next = G->adjList[i].firstedge; //将e指针指向当前顶点指向的结点(头插法)
G->adjList[i].firstedge = e;
e = (EdgeNode *)malloc(sizeof(EdgeNode));
e->adjvex = i;
e->next = G->adjList[j].firstedge; //将e指针指向当前顶点指向的结点
G->adjList[j].firstedge = e;
}
}
DBFSAdjacencyList.h文件:
#include"AdjacencyList.h"
#include"StackAndQueue.h"
#define MAX 100
int visited[MAX];
void BFSTraverse(GraphAdjList GL){
int i, j;
EdgeNode *p;
SqQueue Q;
for(i = 0; i < GL.numVertexes; i++){
visited[i] = FALSE;
}
InitQueue(&Q); //初始化一辅助用的队列
for(i = 0; i < GL.numVertexes; i++){
if(!visited[i]){
visited[i] = TRUE; //设置当前顶点访问过
printf("%c ", GL.adjList[i].data);
EnQueue(&Q, i);
while(QueueLength(Q) > 0){
DeQueue(&Q, &i);
p = GL.adjList[i].firstedge;
while(p){
if(!visited[p->adjvex]){
visited[p->adjvex] = TRUE;
printf("%c ", GL.adjList[p->adjvex].data);
EnQueue(&Q, p->adjvex);
}
p = p->next;
}
}
}
}
}
void DFS(GraphAdjList GL, int i){
EdgeNode *p;
visited[i] = TRUE;
printf("%c ", GL.adjList[i].data);
p = GL.adjList[i].firstedge;
while(p){
if(!visited[p->adjvex]){
DFS(GL, p->adjvex);
}
p = p->next;
}
}
void DFSTraverse(GraphAdjList GL){
int i;
for(i = 0; i < GL.numVertexes; i++){
visited[i] = FALSE;
}
for(i = 0; i < GL.numVertexes; i++){
if(!visited[i]){
DFS(GL, i);
}
}
}
StackAndQueue.h文件:(邻接矩阵的实现已给出此文件代码)
test.cpp文件:
#include"DBFSAdjacencyList.h"
int main(){
GraphAdjList GL;
printf("-------------------邻接表的【创建】-------------------\n");
CreateALGraph(&GL);
printf("\n-------------------邻接表的【DFS】-------------------\n");
DFSTraverse(GL);
printf("\n-------------------邻接表的【BFS】-------------------\n");
BFSTraverse(GL);
}