Chapter 4(栈与队列)
Posted lyndonmario
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1.栈的顺序存储结构
//*********************************stack_array.h************************************
#ifndef STACK_ARRAY_H
#define STACK_ARRAY_H
#define MAXSIZE 1000
#include <stdio.h>
#include <stdbool.h>
#include <stdlib.h>
typedef int datatype;
typedef struct stack_array
{
datatype data[MAXSIZE];
size_t top;
}SqStack;
//栈初始化
bool InitStack(SqStack *p);
//入栈
bool push(SqStack *stack,datatype e);
//出栈
bool pop(SqStack *stack,datatype *e);
#endif //STACK_ARRAY_H
//*********************************stack_array.c************************************
#include "stack_array.h"
//栈初始化
bool InitStack(SqStack *p)
{
if(NULL == p)return false;
p->top = -1;
return true;
}
//入栈
bool push(SqStack *stack,datatype e)
{
if(MAXSIZE-1 == stack->top)return false;//栈满
++stack->top;//入栈
stack->data[stack->top] = e;
return true;
}
//出栈
bool pop(SqStack *stack,datatype *e)
{
if(-1 == stack->top)return false;
*e = stack->data[stack->top];
--stack->top;
return true;
}
//*********************************stack_arrayTest.c************************************
#include "stack_array.h"
int main()
{
SqStack stack;
InitStack(&stack);
for(int i = 1;i <= 10;i++)
{
push(&stack,i);
}
datatype tmp;
for(int i =1;i <= 10;i++)
{
pop(&stack,&tmp);
printf("%d
",tmp);
}
}
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1
//*********************************stack_array.h************************************
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typedef int datatype;
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typedef struct stack_array
12
{
13
datatype data[MAXSIZE];
14
size_t top;
15
}SqStack;
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//栈初始化
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bool InitStack(SqStack *p);
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//入栈
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bool push(SqStack *stack,datatype e);
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//出栈
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bool pop(SqStack *stack,datatype *e);
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//STACK_ARRAY_H
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//*********************************stack_array.c************************************
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//栈初始化
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bool InitStack(SqStack *p)
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{
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if(NULL == p)return false;
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p->top = -1;
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return true;
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}
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//入栈
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bool push(SqStack *stack,datatype e)
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{
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if(MAXSIZE-1 == stack->top)return false;//栈满
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++stack->top;//入栈
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stack->data[stack->top] = e;
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return true;
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}
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//出栈
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bool pop(SqStack *stack,datatype *e)
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{
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if(-1 == stack->top)return false;
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*e = stack->data[stack->top];
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--stack->top;
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return true;
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}
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//*********************************stack_arrayTest.c************************************
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int main()
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{
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SqStack stack;
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InitStack(&stack);
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for(int i = 1;i <= 10;i++)
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{
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push(&stack,i);
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}
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datatype tmp;
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for(int i =1;i <= 10;i++)
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{
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pop(&stack,&tmp);
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printf("%d
",tmp);
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}
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}
2.两栈共享空间(栈的顺序存储结构)
//*******************************stack_share.h***********************************
#ifndef STACK_SHARE_H
#define STACK_SHARE_H
#define MAXSIZE 1000
#include <stdio.h>
#include <stdbool.h>
#include <stdlib.h>
#include <memory.h>
typedef int datatype;
typedef struct stack_share
{
datatype data[MAXSIZE];
size_t top1;
size_t top2;
}SqDoubleStack;
//初始化栈
void InitStack(SqDoubleStack *stack);
//压栈
bool push(SqDoubleStack *stack,datatype e,int num);
//弹栈
bool pop(SqDoubleStack *stack,datatype *e,int num);
#endif //STACK_SHARE_H
//*******************************stack_share.c***********************************
#include "stack_share.h"
//初始化栈
void InitStack(SqDoubleStack *stack)
{
stack->top1 = -1;
stack->top2 = MAXSIZE;
}
//压栈
bool push(SqDoubleStack *stack,datatype e,int num)
{
if(stack->top1+1 == stack->top2)return false;
if(1 == num)
{
stack->data[++stack->top1] = e;
}
else if(2 == num)
{
stack->data[--stack->top2] = e;
}
return true;
}
//弹栈
bool pop(SqDoubleStack *stack,datatype *e,int num)
{
if(1 == num)
{
if(-1 != stack->top1)return false;
*e = stack->data[stack->top1--];
}
else if(2 == num)
{
if(MAXSIZE != stack->top2)return false;
*e = stack->data[stack->top2++];
}
return true;
}
//*******************************stack_shareTest.c***********************************
#include "stack_share.h"
int main()
{
SqDoubleStack stack;
InitStack(&stack);
memset(stack.data,0,sizeof(int)*1000);
for(int i =1;i <= 10;i++)
{
push(&stack,i,1);
}
for(int i =1;i <= 10;i++)
{
push(&stack,i,2);
}
for(int i = 0;i < 1000;i++)
{
printf("%d ",stack.data[i]);
}
return 0;
}
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//*******************************stack_share.h***********************************
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typedef int datatype;
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typedef struct stack_share
14
{
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datatype data[MAXSIZE];
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size_t top1;
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size_t top2;
18
}SqDoubleStack;
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//初始化栈
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void InitStack(SqDoubleStack *stack);
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//压栈
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bool push(SqDoubleStack *stack,datatype e,int num);
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//弹栈
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bool pop(SqDoubleStack *stack,datatype *e,int num);
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//STACK_SHARE_H
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//*******************************stack_share.c***********************************
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//初始化栈
40
void InitStack(SqDoubleStack *stack)
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{
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stack->top1 = -1;
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stack->top2 = MAXSIZE;
44
}
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//压栈
47
bool push(SqDoubleStack *stack,datatype e,int num)
48
{
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if(stack->top1+1 == stack->top2)return false;
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if(1 == num)
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{
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stack->data[++stack->top1] = e;
54
}
55
else if(2 == num)
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{
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stack->data[--stack->top2] = e;
58
}
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return true;
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}
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//弹栈
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bool pop(SqDoubleStack *stack,datatype *e,int num)
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{
65
if(1 == num)
66
{
67
if(-1 != stack->top1)return false;
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*e = stack->data[stack->top1--];
69
}
70
else if(2 == num)
71
{
72
if(MAXSIZE != stack->top2)return false;
73
*e = stack->data[stack->top2++];
74
}
75
return true;
76
}
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//*******************************stack_shareTest.c***********************************
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int main()
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{
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SqDoubleStack stack;
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InitStack(&stack);
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memset(stack.data,0,sizeof(int)*1000);
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for(int i =1;i <= 10;i++)
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{
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push(&stack,i,1);
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}
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for(int i =1;i <= 10;i++)
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{
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push(&stack,i,2);
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}
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for(int i = 0;i < 1000;i++)
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{
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printf("%d ",stack.data[i]);
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}
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return 0;
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}
3.*****链栈*****
//****************************stack_link.h************************************
#ifndef STACK_LINK_H
#define STACK_LINK_H
#include <stdio.h>
#include <stdbool.h>
#include <stdlib.h>
typedef int datatype;
typedef struct StackNode
{
datatype data;
struct StackNode *next;
}StackNode;
typedef struct StackLink
{
StackNode *top;
size_t count;
}Stack;
//创建链栈
Stack *create();
//压栈
bool push(Stack *stack,datatype e);
//弹栈
bool pop(Stack *stack,datatype *e);
#endif //STACK_LINK_H
//****************************stack_link.c************************************
#include "stack_link.h"
//创建链栈
Stack *create()
{
Stack *stack = (Stack *)malloc(sizeof(Stack));
stack->top = NULL;
stack->count = 0;
return stack;
}
//压栈
bool push(Stack *stack,datatype e)
{
if(NULL == stack)return false;
StackNode *node = (StackNode *)malloc(sizeof(StackNode)); //申请新节点
node->data = e;//为新节点赋值
node->next = stack->top;
stack->top = node;//使top指向新节点
++stack->count;//count++
return true;
}
//弹栈
bool pop(Stack *stack,datatype *e)
{
if(NULL == stack->top)return false;//如果栈空,弹出失败
StackNode *curr = stack->top;//保存栈顶节点地址
StackNode *next = curr->next;//保存栈顶下一个节点地址
*e = curr->data;//保存弹出值
stack->top = next;//使top指向原栈顶下一个节点
--stack->count;
free(curr);
return true;
}
//****************************stack_linkTest.c************************************
#include "stack_link.h"
int main()
{
Stack *stack = create();
for(int i = 1;i <= 10;i++)
{
push(stack,i);
}
datatype tmp;
for(int i = 1;i <= 10;i++)
{
pop(stack,&tmp);
printf("%d ",tmp);
}
printf("
");
return 0;
}
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1
//****************************stack_link.h************************************
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typedef int datatype;
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typedef struct StackNode
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{
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datatype data;
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struct StackNode *next;
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}StackNode;
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typedef struct StackLink
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{
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StackNode *top;
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size_t count;
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}Stack;
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//创建链栈
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Stack *create();
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//压栈
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bool push(Stack *stack,datatype e);
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//弹栈
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bool pop(Stack *stack,datatype *e);
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//STACK_LINK_H
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//****************************stack_link.c************************************
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//创建链栈
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Stack *create()
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{
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Stack *stack = (Stack *)malloc(sizeof(Stack));
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stack->top = NULL;
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stack->count = 0;
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return stack;
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}
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//压栈
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bool push(Stack *stack,datatype e)
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{
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if(NULL == stack)return false;
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StackNode *node = (StackNode *)malloc(sizeof(StackNode)); //申请新节点
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node->data = e;//为新节点赋值
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node->next = stack->top;
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stack->top = node;//使top指向新节点
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++stack->count;//count++
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return true;
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}
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//弹栈
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bool pop(Stack *stack,datatype *e)
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{
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if(NULL == stack->top)return false;//如果栈空,弹出失败
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StackNode *curr = stack->top;//保存栈顶节点地址
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StackNode *next = curr->next;//保存栈顶下一个节点地址
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*e = curr->data;//保存弹出值
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stack->top = next;//使top指向原栈顶下一个节点
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--stack->count;
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free(curr);
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return true;
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}
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//****************************stack_linkTest.c************************************
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int main()
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{
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Stack *stack = create();
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for(int i = 1;i <= 10;i++)
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{
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push(stack,i);
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}
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datatype tmp;
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for(int i = 1;i <= 10;i++)
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{
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pop(stack,&tmp);
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printf("%d ",tmp);
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}
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printf("
");
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return 0;
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}
4.循环队列(顺序存储结构)
//************************************circular_queue.h****************************************
#ifndef CIRCULAR_LINK_H
#define CIRCULAR_LINK_H
#include <stdio.h>
#include <stdbool.h>
#include <stdlib.h>
#define MAXSIZE 1000
typedef int datatype;
typedef struct
{
datatype data[MAXSIZE];
size_t front;
size_t rear;
}SqQueue;
//初始化队列
void InitQueue(SqQueue *Q);
//求队列长度
size_t length(SqQueue Q);
//入队
bool EnQueue(SqQueue *Q,datatype e);
//出队
bool DeQueue(SqQueue *Q,datatype *e);
#endif //CIRCULAR_LINK_H
//************************************circular_queue.c****************************************
#include "circular_queue.h"
//初始化队列
void InitQueue(SqQueue *Q)
{
Q->front = 0;
Q->rear = 0;
}
//求队列长度
size_t length(SqQueue Q)
{
return (Q.rear-Q.front+MAXSIZE)%MAXSIZE;
}
//入队
bool EnQueue(SqQueue *Q,datatype e)
{
if((Q->rear+1)%MAXSIZE == Q->front)return false;
Q->data[Q->rear] = e;
Q->rear = (Q->rear+1)%MAXSIZE;
return false;
}
//出队
bool DeQueue(SqQueue *Q,datatype *e)
{
if(Q->front == Q->rear)return false;
*e = Q->data[Q->front];
Q->front = (Q->front+1)%MAXSIZE;
return true;
}
//************************************circular_queueTest.c****************************************
#include "circular_queue.h"
int main()
{
SqQueue Q;
InitQueue(&Q);
printf("length:%d
",length(Q));
for(size_t i = 1;i <= 1000;i++)
{
EnQueue(&Q,i);
}
printf("length:%d
",length(Q));
size_t temp;
for(size_t i = 1;i <= 10;i++)
{
DeQueue(&Q,&temp);
printf("%d ",temp);
}
printf("
");
printf("length:%d
",length(Q));
for(size_t i = 1;i <= 10;i++)
{
EnQueue(&Q,i);
}
printf("length:%d
",length(Q));
for(size_t i = 1;i <= 1000;i++)
{
DeQueue(&Q,&temp);
printf("%d ",temp);
}
printf("length:%d
",length(Q));
return 0;
}
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112
1
//************************************circular_queue.h****************************************
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typedef int datatype;
10
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typedef struct
12
{
13
datatype data[MAXSIZE];
14
size_t front;
15
size_t rear;
16
}SqQueue;
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19
//初始化队列
20
void InitQueue(SqQueue *Q);
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//求队列长度
23
size_t length(SqQueue Q);
24
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//入队
26
bool EnQueue(SqQueue *Q,datatype e);
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//出队
29
bool DeQueue(SqQueue *Q,datatype *e);
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//CIRCULAR_LINK_H
33
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//************************************circular_queue.c****************************************
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//初始化队列
40
void InitQueue(SqQueue *Q)
41
{
42
Q->front = 0;
43
Q->rear = 0;
44
}
45
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//求队列长度
47
size_t length(SqQueue Q)
48
{
49
return (Q.rear-Q.front+MAXSIZE)%MAXSIZE;
50
}
51
52
//入队
53
bool EnQueue(SqQueue *Q,datatype e)
54
{
55
if((Q->rear+1)%MAXSIZE == Q->front)return false;
56
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Q->data[Q->rear] = e;
58
Q->rear = (Q->rear+1)%MAXSIZE;
59
return false;
60
}
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//出队
63
bool DeQueue(SqQueue *Q,datatype *e)
64
{
65
if(Q->front == Q->rear)return false;
66
67
*e = Q->data[Q->front];
68
Q->front = (Q->front+1)%MAXSIZE;
69
return true;
70
}
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//************************************circular_queueTest.c****************************************
75
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int main()
79
{
80
SqQueue Q;
81
InitQueue(&Q);
82
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printf("length:%d
",length(Q));
84
85
for(size_t i = 1;i <= 1000;i++)
86
{
87
EnQueue(&Q,i);
88
}
89
printf("length:%d
",length(Q));
90
size_t temp;
91
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for(size_t i = 1;i <= 10;i++)
93
{
94
DeQueue(&Q,&temp);
95
printf("%d ",temp);
96
}
97
printf("
");
98
printf("length:%d
",length(Q));
99
for(size_t i = 1;i <= 10;i++)
100
{
101
EnQueue(&Q,i);
102
}
103
104
printf("length:%d
",length(Q));
105
for(size_t i = 1;i <= 1000;i++)
106
{
107
DeQueue(&Q,&temp);
108
printf("%d ",temp);
109
}
110
printf("length:%d
",length(Q));
111
return 0;
112
}
5.链队列
//*******************************queue_link.h****************************************
#ifndef QUEUE_LINK_H
#define QUEUE_LINK_H
#include <stdio.h>
#include <stdbool.h>
#include <stdlib.h>
typedef int datatype;
typedef struct QNode
{
datatype data;
struct QNode *next;
}QNode,*QueuePtr;
typedef struct
{
QueuePtr front,rear;
}LinkQueue;
//创建队列
LinkQueue create();
//入队
bool EnQueue(LinkQueue *Q,datatype e);
//出队
bool DeQueue(LinkQueue *Q,datatype *e);
#endif //QUEUE_LINK_H
//*******************************queue_link.c****************************************
#include "queue_link.h"
//创建队列
LinkQueue create()
{
QueuePtr head = (QueuePtr)malloc(sizeof(QNode));
head->next = NULL;
LinkQueue Q;
Q.front = head;
Q.rear = head;
return Q;
}
//入队
bool EnQueue(LinkQueue *Q,datatype e)
{
QueuePtr s = (QueuePtr)malloc(sizeof(QNode));//创建新节点
if(!s)return false;
s->data = e; //设置新节点数据
s->next = NULL;
Q->rear->next = s; //将原来的队尾指向新节点
Q->rear = s; //队尾指针指向s
return true;
}
//出队
bool DeQueue(LinkQueue *Q,datatype *e)
{
if(Q->front == Q->rear)return false;
QueuePtr node = Q->front->next;//保存要删除节点的地址
QueuePtr behind = node->next;//保存要删除节点下一个节点的地址
*e = node->data;//保存数据
Q->front->next = behind;//使front指向下一个节点
if(Q->rear == node)Q->rear = Q->front;//假如出队前队列只有一个元素,则出队后队列为空,队尾应该指向头节点。
free(node);
return true;
}
//*******************************queue_linkTest.c****************************************
#include "queue_link.h"
int main()
{
LinkQueue Q = create();
for(size_t i = 1;i <= 10;i++)
{
EnQueue(&Q,i);
}
size_t tmp;
for(size_t i = 1;i <= 10;i++)
{
DeQueue(&Q,&tmp);
printf("%d ",tmp);
}
printf("
");
return 0;
}
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150
1
//*******************************queue_link.h****************************************
2
3
4
5
6
7
8
9
10
11
12
typedef int datatype;
13
14
15
16
typedef struct QNode
17
18
{
19
20
datatype data;
21
22
struct QNode *next;
23
24
}QNode,*QueuePtr;
25
26
27
typedef struct
28
29
{
30
31
QueuePtr front,rear;
32
33
}LinkQueue;
34
35
//创建队列
36
37
LinkQueue create();
38
39
//入队
40
41
bool EnQueue(LinkQueue *Q,datatype e);
42
43
//出队
44
45
bool DeQueue(LinkQueue *Q,datatype *e);
46
47
48
//QUEUE_LINK_H
49
50
51
//*******************************queue_link.c****************************************
52
53
54
55
//创建队列
56
57
LinkQueue create()
58
59
{
60
61
QueuePtr head = (QueuePtr)malloc(sizeof(QNode));
62
63
head->next = NULL;
64
65
LinkQueue Q;
66
67
Q.front = head;
68
69
Q.rear = head;
70
71
return Q;
72
73
}
74
75
76
77
//入队
78
79
bool EnQueue(LinkQueue *Q,datatype e)
80
81
{
82
83
QueuePtr s = (QueuePtr)malloc(sizeof(QNode));//创建新节点
84
85
if(!s)return false;
86
87
88
89
s->data = e; //设置新节点数据
90
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s->next = NULL;
92
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Q->rear->next = s; //将原来的队尾指向新节点
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Q->rear = s; //队尾指针指向s
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return true;
100
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}
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104
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//出队
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bool DeQueue(LinkQueue *Q,datatype *e)
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{
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if(Q->front == Q->rear)return false;
112
113
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QueuePtr node = Q->front->next;//保存要删除节点的地址
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QueuePtr behind = node->next;//保存要删除节点下一个节点的地址
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*e = node->data;//保存数据
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Q->front->next = behind;//使front指向下一个节点
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if(Q->rear == node)Q->rear = Q->front;//假如出队前队列只有一个元素,则出队后队列为空,队尾应该指向头节点。
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132
133
free(node);
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136
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return true;
138
139
}
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142
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144
145
//*******************************queue_linkTest.c****************************************
146
147
148
149
150
int main()
151
152
{
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LinkQueue Q = create();
155
156
157
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for(size_t i = 1;i <= 10;i++)
159
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{
161
162
EnQueue(&Q,i);
163
164
}
165
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167
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size_t tmp;
169
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for(size_t i = 1;i <= 10;i++)
171
172
{
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DeQueue(&Q,&tmp);
175
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printf("%d ",tmp);
177
178
}
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printf("
");
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return 0;
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}
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