栈数组与栈链表代码实现
栈数组
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#define maxn 10000
//结点设计
typedef struct stack{
int data[maxn];
int top;
}stack;
//创建
stack *init(){
stack *s=(stack *)malloc(sizeof(stack));
if(s==NULL){
printf("分配内存空间失败");
exit(0);
}
memset(s->data,0,sizeof(s->data));
//memset操作来自于库文件string.h,其表示将整个空间进行初始化
//不理解可以查阅百度百科https://baike.baidu.com/item/memset/4747579?fr=aladdin
s->top=0; //栈的top和bottom均为0(表示为空)
return s;
}
//入栈push
void push(stack *s,int data){
s->data[s->top]=data;
s->top++;
}
//出栈pop
void pop(stack *s){
if(s->top!=0){
s->data[s->top]=0; //让其回归0模拟表示未初始化即可
s->top--;
}
}
//模拟打印栈中元素
void print_stack(stack *s){
for(int n=s->top-1;n>=0;n--){
printf("%d\t",s->data[n]);
}
printf("\n"); //习惯性换行
}
int main(){
stack *s=init();
int input[5]={11,22,33,44,55}; //模拟五个输入数据
for(int i=0;i<5;i++){
push(s,input[i]);
}
print_stack(s);
/////////////
pop(s);
print_stack(s);
return 0;
}
栈链表:
#include <stdio.h>
#include <stdlib.h>
//栈的结点设计
//单个结点设计,数据和下一个指针
typedef struct node
{
int data;
struct node *next;
} Node;
//利用上面的结点创建栈,分为指向头结点的top指针和计数用的count
typedef struct stack
{
Node *top;
int count;
} Link_Stack;
//创建栈
Link_Stack *Creat_stack()
{
Link_Stack *p;
//p = new Link_Stack;
p=(Link_Stack*)malloc(sizeof(Link_Stack));
if(p==NULL){
printf("创建失败,即将退出程序");
exit(0);
}
p->count = 0;
p->top = NULL;
return p;
}
//入栈 push
Link_Stack *Push_stack(Link_Stack *p, int elem)
{
if (p == NULL)
return NULL;
Node *temp;
temp=(Node*)malloc(sizeof(Node));
//temp = new Node;
temp->data = elem;
temp->next = p->top;
p->top = temp;
p->count++;
return p;
}
//出栈 pop
Link_Stack *Pop_stack(Link_Stack *p)
{
Node *temp;
temp = p->top;
if (p->top == NULL)
{
printf("错误:栈为空");
return p;
}
else
{
p->top = p->top->next;
free(temp);
//delete temp;
p->count--;
return p;
}
}
//遍历栈:输出栈中所有元素
int show_stack(Link_Stack *p)
{
Node *temp;
temp = p->top;
if (p->top == NULL)
{
printf("");
printf("错误:栈为空");
return 0;
}
while (temp != NULL)
{
printf("%d\t", temp->data);
temp = temp->next;
}
printf("\n");
return 0;
}
int main()
{ //用主函数测试一下功能
Link_Stack *p;
p = Creat_stack();
int n = 5;
int input[6] = {10,20,30,40,50,60};
/////////////以依次入栈的方式创建整个栈//////////////
for(int i=0;i<n;i++){
Push_stack(p, input[i]);
}
show_stack(p);
////////////////////出栈///////////////////////
Pop_stack(p);
show_stack(p);
return 0;
}
因上求缘,果上努力~~~~ 作者:图神经网络,转载请注明原文链接:https://www.cnblogs.com/BlairGrowing/p/13650519.html