c语言入栈出栈代码

C++栈的基本操作1// zhan.cpp : 定义控制台应⽤程序的⼊⼝点。

2//34 #include "stdafx.h"5 #include <iostream>6using namespace std;7 typedef struct stacknode8 {9int data;10struct stacknode *next;11 }stacknode,*LinkStack;1213//判断栈为空14int StackEmpty(LinkStack &top)15 {16if(top ->next == NULL)17return1;18else19return0;20 }2122//⼊栈函数23 LinkStack push(LinkStack &top,int value)24 {25 LinkStack p = new stacknode;26if(p != NULL)27 {28 p ->data = value;//可以理解为在链表尾部插⼊⼀个节点。

29 p ->next = top ->next;30 top ->next = p;31 }32else33 cout << "没有内存可分配" << endl;34return top;35 }3637//出栈函数38int pop(LinkStack &top)39 {40 LinkStack temp = new stacknode;41int data;42if(StackEmpty(top))43 cout << "该栈为空！" << endl;44else45 {46 temp = top ->next;//可以理解为删除⼀个节点47 data = temp ->data;48 top ->next = temp ->next;49 delete(temp);50 }51return data;52 }5354//打印函数55void Print(LinkStack &top)56 {57 LinkStack top1 = top; //时刻要注意，我们不可以改变链表本⾝的值及指向，不过我们可以找别⼈来完成此事。

数据结构经典题目及c语言代码一、线性表1. 顺序表顺序表是一种利用连续存储空间存储元素的线性表。

以下是一个顺序表的经典题目及C语言代码实现：```c#define MaxSize 50typedef struct {int data[MaxSize]; // 存储元素的数组int length; // 顺序表的当前长度} SeqList;// 初始化顺序表void initList(SeqList *L) {L->length = 0;}// 插入元素到指定位置void insert(SeqList *L, int pos, int elem) {if (pos < 1 || pos > L->length + 1) {printf("插入位置无效\n");return;}if (L->length == MaxSize) {printf("顺序表已满，无法插入\n"); return;}for (int i = L->length; i >= pos; i--) { L->data[i] = L->data[i - 1];}L->data[pos - 1] = elem;L->length++;}// 删除指定位置的元素void delete(SeqList *L, int pos) {if (pos < 1 || pos > L->length) {printf("删除位置无效\n");return;}for (int i = pos - 1; i < L->length - 1; i++) {L->data[i] = L->data[i + 1];}L->length--;}// 获取指定位置的元素值int getElement(SeqList *L, int pos) {if (pos < 1 || pos > L->length) {printf("位置无效\n");return -1;}return L->data[pos - 1];}```2. 链表链表是一种利用非连续存储空间存储元素的线性表。

C语⾔【栈的应⽤数制转换】1 #include <stdio.h>2 #include <malloc.h>3 #include <process.h>4#define OK 15#define STACK_INIT_SIZE 56#define STACKINCREMENT 57 typedef int ElemType;89 typedef struct10 {1112 ElemType *base;13 ElemType *top;14int stacksize;15 }SqStack;16void InitStack(SqStack *S)17 {18 S->base=(ElemType *)malloc(STACK_INIT_SIZE*sizeof(ElemType)); //分配内存19if(!S->base) //如果为空,则退出20 exit(1);21 S->top=S->base;22 S->stacksize=STACK_INIT_SIZE;23 }24int push(SqStack *S,ElemType e)/*顺序⼊栈*/25 {26if(S->top-S->base>S->stacksize)//栈中的数据长度⼤于给定分配⼤⼩27 {28 S->base=(ElemType *)realloc(S->base,(S->stacksize+STACKINCREMENT)*sizeof(ElemType));//增加内存⼤⼩29if(!S->base)30 exit(1);31 S->top=S->base+S->stacksize;//将增加的长度给更新32 S->stacksize+=STACKINCREMENT;//更新增加后的长度33 }34 *S->top=e;35 S->top++;36return1;3738 }39 ElemType pop(SqStack *S,ElemType *e)/*顺序出栈*/40 {41if(S->top==S->base) //出栈判断栈是否是空42 printf("此时栈为空,不能出栈!\n");43 *e=*--S->top;44return *e;45 }46int StackEmpty(SqStack *S)/*判断顺序栈是否为空*/47 {48if(S->top==S->base)49return1;50else51return0;5253 }54void DestroyStack(SqStack *S)/*顺序栈销毁*/55 {56 free(S->top);57 }5859void Conversion()/*数值转换*/60 {61int n;62int m;63 SqStack s;64 ElemType e;65 InitStack(&s);66 printf("请输⼊带转换的数值:\n");67 scanf("%d",&n);68 printf("请输⼊要转化的数制:\n");69 scanf("%d",&m);70while(n)71 {72 push(&s,n%m);73 n=n/m;74 }75while(!StackEmpty(&s))76 {77 pop(&s,&e);78 printf("%d",e);7981 printf("\n");82 DestroyStack(&s);8384 }85int main(void) /*程序⼊⼝*/86 {87 Conversion();88return OK;89 }1 #include <stdio.h>2 #include <malloc.h>3 #include <process.h>4#define OK 15#define STACK_INIT_SIZE 56#define STACKINCREMENT 57 typedef int ElemType;89 typedef struct10 {1112 ElemType *base;13 ElemType *top;14int stacksize;15 }SqStack;16void InitStack(SqStack *S)17 {18 S->base=(ElemType *)malloc(STACK_INIT_SIZE*sizeof(ElemType)); //分配内存19if(!S->base) //如果为空,则退出20 exit(1);21 S->top=S->base;22 S->stacksize=STACK_INIT_SIZE;23 }24int push(SqStack *S,ElemType e)/*顺序⼊栈*/25 {26if(S->top-S->base>S->stacksize)//栈中的数据长度⼤于给定分配⼤⼩27 {28 S->base=(ElemType *)realloc(S->base,(S->stacksize+STACKINCREMENT)*sizeof(ElemType));//增加内存⼤⼩29if(!S->base)30 exit(1);31 S->top=S->base+S->stacksize;//将增加的长度给更新32 S->stacksize+=STACKINCREMENT;//更新增加后的长度33 }34 *S->top=e;35 S->top++;36return1;3738 }39 ElemType pop(SqStack *S,ElemType *e)/*顺序出栈*/40 {41if(S->top==S->base) //出栈判断栈是否是空42 printf("此时栈为空,不能出栈!\n");43 *e=*--S->top;44return *e;45 }46int StackEmpty(SqStack *S)/*判断顺序栈是否为空*/47 {48if(S->top==S->base)49return1;50else51return0;5253 }54void DestroyStack(SqStack *S)/*顺序栈销毁*/55 {56 free(S->top);57 }5859void Conversion()/*数值转换*/60 {61int n;62int m;63 SqStack s;64 ElemType e;65 InitStack(&s);66 printf("请输⼊带转换的数值:\n");67 scanf("%d",&n);68 printf("请输⼊要转化的数制:\n");69 scanf("%d",&m);70while(n)71 {72 push(&s,n%m);73 n=n/m;75while(!StackEmpty(&s))76 {77 pop(&s,&e);78 printf("%d",e);7980 }81 printf("\n");82 DestroyStack(&s);8384 }85int main(void) /*程序⼊⼝*/86 {87 Conversion();88return OK;89 }。

c语言用两个栈实现队列,分别写出入队和出队的算法。

注意可以直接调用队列和栈的基-回复C语言是一种广泛使用的编程语言，具有强大的功能和灵活性。

队列和栈是常见的数据结构，用于解决各种实际问题。

在本文中，我们将讨论如何使用两个栈来实现队列，并分别介绍入队和出队的算法。

队列是一种操作受限的线性数据结构，遵循先进先出（FIFO）的原则。

栈是另一种操作受限的线性数据结构，遵循后进先出（LIFO）的原则。

通过利用两个栈的特性，我们可以实现队列的所有操作。

一、入队算法实现将元素插入队列的过程被称为入队。

在使用两个栈实现队列时，我们可以将一个栈作为输入栈，另一个栈作为输出栈。

下面是入队的算法实现：1. 首先，检查两个栈是否为空。

2. 如果输出栈不为空，则将输出栈中的所有元素依次出栈并入栈到输入栈中，以确保新插入的元素插入到栈底。

3. 将新元素插入到输入栈的栈顶。

4. 入队完成。

下面是使用C语言编写的入队算法示例代码：cvoid enqueue(int item, Stack *inputStack, Stack *outputStack) { 检查输出栈是否为空if (!is_empty(outputStack)) {while (!is_empty(outputStack)) {将输出栈中的元素依次出栈并插入到输入栈中int popped_item = pop(outputStack);push(popped_item, inputStack);}}将新元素插入到输入栈的栈顶push(item, inputStack);}二、出队算法实现将元素从队列中移除的过程被称为出队。

在使用两个栈实现队列时，我们同样可以利用一个栈作为输入栈，另一个栈作为输出栈。

下面是出队的算法实现：1. 首先，检查输出栈是否为空。

2. 如果输出栈为空，则将输入栈中的所有元素依次出栈并入栈到输出栈中，以确保最早进入的元素在输出栈的栈顶。

3. 从输出栈的栈顶移除一个元素，并返回该元素。

c语言栈的定义栈（Stack）是一种常见的数据结构，它基于后进先出（Last In First Out，LIFO）的原则进行操作。

在C语言中，栈可以通过数组或链表实现。

1.数组实现栈数组实现栈是最简单和常见的方式之一。

我们可以定义一个固定大小的数组，并使用一个指针来表示栈顶位置。

栈内的元素可以通过增加或减少指针来进行入栈和出栈操作。

定义一个栈的结构体：```c#define MAX_SIZE 100typedef struct {int data[MAX_SIZE];int top;} Stack;```- `data`是一个整型数组，用于存储栈内的元素。

- `top`是一个整数变量，用于表示栈顶元素的位置。

初始化栈：```cvoid initStack(Stack* stack) {stack->top = -1;}```入栈操作：```cvoid push(Stack* stack, int value) {if (stack->top == MAX_SIZE - 1) {printf("栈已满，无法入栈！"); return;}stack->data[++stack->top] = value; }```出栈操作：```cint pop(Stack* stack) {if (stack->top == -1) {printf("栈已空，无法出栈！"); return -1;}return stack->data[stack->top--];}```获取栈顶元素：```cint peek(Stack* stack) {if (stack->top == -1) {printf("栈已空，无法获取栈顶元素！"); return -1;}return stack->data[stack->top];}```判断栈是否为空：```cint isEmpty(Stack* stack) {return stack->top == -1;}```判断栈是否已满：```cint isFull(Stack* stack) {return stack->top == MAX_SIZE - 1;}```2.链表实现栈链表实现栈是另一种常见的方式。

C语言中栈的基本操作栈（Stack）是一种遵循“后进先出”（LIFO）原则的数据结构，具有以下几个基本操作：入栈（Push）、出栈（Pop）、判断栈是否为空（Empty）以及获取栈顶元素（Top）。

下面将详细介绍这些基本操作。

1. 入栈（Push）：将一个元素添加到栈的顶部。

入栈操作分为两个步骤：(1)判断栈是否已满，如果已满则无法再添加元素；(2)若栈不满，则将元素添加到栈的顶部，并更新栈顶指针。

具体实现代码如下：```void push(Stack *s, int item)if (is_full(s))printf("Stack is full, cannot push more elements.\n");return;}s->top++;s->data[s->top] = item;}```2. 出栈（Pop）：将栈顶元素移除，并返回该元素的值。

出栈操作也有两个步骤：(1)判断栈是否为空，如果为空则无法进行出栈操作；(2)若栈不为空，则将栈顶元素移除，并更新栈顶指针。

具体实现代码如下：```int pop(Stack *s)int item;if (is_empty(s))printf("Stack is empty, cannot pop any elements.\n");return -1; // 指定一个特定的返回值来表示错误}item = s->data[s->top];s->top--;return item;}```3. 判断栈是否为空（Empty）：判断栈是否为空分为两种情况，一种是根据栈顶指针进行判断，另一种是根据数据数量进行判断。

(1)判断栈顶指针是否为-1，若为-1则说明栈为空；(2)若栈内数据数量为0，则栈为空。

具体实现代码如下：```int is_empty(Stack *s)return s->top == -1; // 栈顶指针为-1表示栈为空}```4. 获取栈顶元素（Top）：返回栈顶元素的值，但不对栈做任何修改。

C语言堆栈和队列函数大全一.顺序栈1.宏定义#include<stdio.h>#include<stdlib.h>#define MAXSIZE ****#define datatype ****2.结构体typedef struct{datatype data[MAXSIZE];int top;}Seqstack;3.基本函数Seqstack *Init_Seqstack()/*置空栈函数(初始化)1.先决条件:无;2.函数作用:首先建立栈空间,然后初始化栈顶指针,返回栈s的地址*/{Seqstack *s;s=(Seqstack *)malloc(sizeof(Seqstack));s->top=-1;return s;}int Empty_Seqstack(Seqstack *s) /*判栈空函数1.先决条件:初始化顺序栈;2.函数作用:判断栈是否为空,空返回1,不空返回0*/ {if(s->top==-1) return 1;else return 0;}int Push_Seqstack(Seqstack *s,datatype x) /*入栈函数1.先决条件:初始化顺序栈2.函数作用:将数据x入栈,栈满则不能,成功返回1,因栈满失败返回0*/ {if(s->top==MAXSIZE-1)return 0;s->top=s->top+1;s->data[s->top]=x;return 1;}int Pop_Seqstack(Seqstack *s,datatype *x) acidity, mL.; M--calibration of the molar concentration of sodium hydroxide standard solution, moI/L; V--amount of the volume of sodium hydroxide standard solution, Ml; M--the weight of the sample, g. Such as poor meets the requirements, take the arithmetic mean of the second determination as a result. Results one decimal. 6, allowing differential analyst simultaneously or in quick succession for the second determination, the absolute value of the difference of the results. This value should be no more than 1.0. 1, definitions and principles for determination of ash in starches, starch and ash: starch samples of ash the residue obtainedafter weight. Original sample residue weight of sample weight or weight expressed as a percentage of the dry weight of the sample. Samples ofash at 900 ? high temperature until ashing sample ... The Crucible: determination of Platinum or other conditions of the affected material, capacity of 50mL. Dryer: has effectively adequate drying agent and-perforated metal plate or porcelain. Ashing furnaces: device for controlling and regulating temperature, offers 900 incineration temperature of 25 c. Analytical balance. Electric hot plate or Bunsen. 3, crucible of analysis steps preparation: Crucible must first wash with boiling dilute hydrochloric acid, then wash with a lot of water and then rinse with distilled water. Wash the Crucible within ashing furnace, heated at 900 to 25 ? 30min, and in the desiccator to cool to room temperature and then weighing,/*出栈函数1.先决条件:初始化顺序栈2.函数作用:从栈中出一个数据,并将其存放到x中,成功返回1,因栈空失败返回0*/{if(s->top==-1)return 0;*x=s->data[s->top];s->top--;return 1;}int Top_Seqstack(Seqstack *s,datatype *x)/*取栈顶元素函数1.先决条件:初始化顺序栈2.函数作用:取栈顶元素,并把其存放到x中,成功返回1,因栈空失败返回0*/{if(s->top==-1)return 0;*x=s->data[s->top];return 1;}int Printf_Seqstack(Seqstack *s) /*遍历顺序栈函数1.先决条件:初始化顺序栈2.函数作用:遍历顺序栈,成功返回1*/ {int i,j=0;for(i=s->top;i>=0;i--){printf("%d ",s->data[i]);/*因datatype不同而不同*/j++;if(j%10==0)printf("\n");}printf("\n");return 1;}int Conversation_Seqstack(int N,int r) /*数制转换函数(顺序栈)1.先决条件:具有置空栈,入栈,出栈函数2.函数作用:将N转换为r进制的数*/{Seqstack *s;datatype x;printf("%d转为%d进制的数为:",N,r);/*以后可以删除去*/s=Init_Seqstack();do{Push_Seqstack(s,N%r);N=N/r;acidity, mL.; M--calibration of the molar concentration of sodium hydroxide standard solution, moI/L; V--amount of the volume of sodium hydroxide standard solution, Ml; M--the weight of the sample, g. Such as poor meets the requirements, take the arithmetic mean of the second determination as a result. Results one decimal. 6, allowing differential analyst simultaneously or in quick succession for the second determination, the absolute value of the difference of the results. This value should be no more than 1.0. 1, definitions and principles for determination of ash in starches, starch and ash: starch samples of ash the residue obtained after weight. Original sample residue weight of sample weight or weight expressed as a percentage of the dry weight of the sample. Samples of ash at 900 ? high temperature until ashing sample ... The Crucible: determination of Platinum or other conditions of the affected material, capacity of 50mL. Dryer: has effectivelyadequate drying agent and-perforated metal plate or porcelain. Ashing furnaces: device for controlling and regulating temperature, offers 900 incineration temperature of 25 c. Analytical balance. Electric hot plate or Bunsen. 3, crucible of analysis steps preparation: Crucible mustfirst wash with boiling dilute hydrochloric acid, then wash with a lot of water and then rinse with distilled water. Wash the Crucible within ashing furnace, heated at 900 to 25 ? 30min, and in the desiccator to cool to room temperature and then weighing,}while(N);while(Pop_Seqstack(s,&x)){if(x>=10)/*为了能转为十进制以上的*/printf("%c",x+55);elseprintf("%d",x);}free(s);/*释放顺序栈*/printf("\n");return 1;}4.主函数int main(){Seqstack *s;int choice;datatype x;do{printf("************************************************************ ****\n");printf("1.置空栈 2.判栈空 3.入栈 4.出栈 5.取栈顶元素 6.遍历 7.退出\n");printf("************************************************************ ****\n");printf("请输入选择(1~7):");scanf("%d",&choice);getchar();switch(choice){case 1:s=Init_Seqstack();if(s)printf("置空栈成功!\n");break;case 2:if(Empty_Seqstack(s))printf("此为空栈.\n");elseprintf("此不为空栈.\n");;break;case 3:printf("请输入一个整数:");scanf("%d",&x);if(Push_Seqstack(s,x))printf("入栈成功.\n");elseprintf("栈已满,无法入栈.\n");;break;case 4:if(Pop_Seqstack(s,&x)) acidity, mL.; M--calibration of the molar concentration of sodium hydroxide standard solution, moI/L; V--amount of the volume of sodium hydroxide standard solution, Ml; M--the weight of the sample, g. Such as poor meets the requirements, take the arithmetic mean of the second determination as a result. Results one decimal. 6, allowing differential analyst simultaneously or in quick succession for the second determination, the absolute value of the difference of the results. This value should be no more than 1.0. 1, definitions and principles for determination of ash in starches, starch and ash: starch samples of ash the residue obtained after weight. Original sample residue weight of sample weight or weight expressed as a percentage of the dry weight of the sample. Samples of ash at 900 ? high temperature until ashing sample ... The Crucible: determination of Platinum or other conditions of the affected material, capacity of 50mL. Dryer: has effectively adequate drying agent and-perforated metal plate or porcelain. Ashing furnaces: device for controlling and regulating temperature, offers 900 incineration temperature of 25 c. Analytical balance. Electric hot plate or Bunsen. 3, crucible of analysis steps preparation: Crucible must first wash with boiling dilute hydrochloric acid, then wash with a lot of water and then rinse with distilled water.Wash the Crucible within ashing furnace, heated at 900 to 25 ? 30min, and in the desiccator to cool to room temperature and then weighing, printf("出栈成功,出栈元素为:%d\n",x);elseprintf("出栈失败,因栈为空.\n");break;case 5:if(Top_Seqstack(s,&x))printf("取栈顶元素成功,栈顶元素为:%d\n",x);elseprintf("取栈顶元素失败,因栈为空.\n");break;case 6:Printf_Seqstack(s);break;case 7:printf("谢谢使用!\n");break;default :printf("输入错误，请重新输入!\n");break;}}while(choice!=7);return 0;}二.链栈1.宏定义#include<stdio.h>#include<stdlib.h>#define datatype ****2.结构体typedef struct snode{datatype data;struct snode *next;}Stacknode,*Linkstack;3.基本函数Linkstack Init_Linkstack()/*初始化栈函数1.先决条件:无2.函数作用:初始化链栈,返回top地址*/ { Linkstack top;top=(Linkstack)malloc(sizeof(Stacknode));top->next=NULL;return top;}int Empty_Linkstack(Linkstack top) /*判栈空函数1.先决条件:初始化链栈2.函数作用:判断栈是否为空,空返回1,不空返回0*/{if(top->next==NULL)acidity, mL.; M--calibration of the molar concentration of sodium hydroxide standard solution, moI/L; V--amount of the volume of sodium hydroxide standard solution, Ml; M--the weight of the sample, g. Such as poor meets the requirements, take the arithmetic mean of the second determination as a result. Results one decimal. 6, allowing differential analyst simultaneously or in quick succession for the second determination, the absolute value of the difference of the results. This value should be no more than 1.0. 1, definitions and principles fordetermination of ash in starches, starch and ash: starch samples of ash the residue obtained after weight. Original sample residue weight of sample weight or weight expressed as a percentage of the dry weight of the sample. Samples of ash at 900 ? high temperature until ashing sample ... The Crucible: determination of Platinum or other conditions of the affected material, capacity of 50mL. Dryer: has effectively adequate drying agent and-perforated metal plate or porcelain. Ashing furnaces: device for controlling and regulating temperature, offers 900 incineration temperature of 25 c. Analytical balance. Electric hot plate or Bunsen. 3, crucible of analysis steps preparation: Crucible mustfirst wash with boiling dilute hydrochloric acid, then wash with a lot of water and then rinse with distilled water. Wash the Crucible within ashing furnace, heated at 900 to 25 ? 30min, and in the desiccator to cool to room temperature and then weighing,return 1;else return 0;}int Push_Linkstack(Linkstack top,datatype x) /*入栈函数1.先决条件:初始化链栈2.函数作用:将数据x入栈,成功返回1,失败返回0*/ { Stacknode *p;p=(Stacknode *)malloc(sizeof(Stacknode));p->data=x;p->next=top->next;top->next=p;return 1;}int Pop_Linkstack(Linkstack top,datatype *x) /*出栈函数1.先决条件:初始化链栈2.函数作用:若栈空退出,若没空则将数据出栈,并将其存放到x中,成功返回1,因栈空失败返回0*/{if(top->next==NULL)return 0;Stacknode *p=top->next;*x=p->data;top->next=p->next;free(p);return 1;}int Top_Linkstack(Linkstack top,datatype *x) /*取栈顶元素函数1.先决条件:初始化链栈2.函数作用:取栈顶元素并放到x中,成功返回1,因栈空失败返回0*/{if(top->next==NULL)return 0;*x=top->next->data;return 1;}int Printf_Linkstack(Linkstack top) /*遍历链栈函数1.先决条件:初始化链栈2.函数作用:遍历链栈,成功返回1*/ {Stacknode *p=top->next;int j=0;while(p){printf("%d ",p->data);/*因datatype不同而不同*/j++;if(j%10==0)acidity, mL.; M--calibration of the molar concentration of sodium hydroxide standard solution, moI/L; V--amount of the volume of sodium hydroxide standard solution, Ml; M--the weight of the sample, g. Such as poor meets the requirements, take the arithmetic mean of the second determination as a result. Results one decimal. 6, allowing differential analyst simultaneously or in quick succession for the second determination, the absolute value of the difference of the results. This value should be no more than 1.0. 1, definitions and principles for determination of ash in starches, starch and ash: starch samples of ash the residue obtained after weight. Original sample residue weight of sample weight or weight expressed as a percentage of the dry weight of the sample. Samples of ash at 900 ? high temperature until ashing sample ... The Crucible: determination of Platinum or other conditions of the affected material, capacity of 50mL. Dryer: has effectively adequate drying agent and-perforated metal plate or porcelain. Ashingfurnaces: device for controlling and regulating temperature, offers 900 incineration temperature of 25 c. Analytical balance. Electric hot plate or Bunsen. 3, crucible of analysis steps preparation: Crucible mustfirst wash with boiling dilute hydrochloric acid, then wash with a lot of water and then rinse with distilled water. Wash the Crucible within ashing furnace, heated at 900 to 25 ? 30min, and in the desiccator to cool to room temperature and then weighing,printf("\n");p=p->next;}printf("\n");return 1;}int Conversation_Linkstack(int N,int r)/*数制转换函数(链栈)1.先决条件:具有置空栈,入栈,出栈函数2.函数作用:将N转换为r进制的数*/{Linkstack top;datatype x;printf("%d转为%d进制的数为:",N,r);/*以后可以删除去*/top=Init_Linkstack();do{Push_Linkstack(top,N%r);N=N/r;}while(N);while(Pop_Linkstack(top,&x)){if(x>=10)/*为了能转为十进制以上的*/printf("%c",x+55);elseprintf("%d",x);}printf("\n");free(top);/*释放栈顶空间*/return 1;}4.主函数int main(){Linkstack top;int choice;datatype x;do{printf("************************************************************ ****\n");printf("1.置空栈 2.判栈空 3.入栈 4.出栈 5.取栈顶元素 6.遍历 7.退出\n");printf("************************************************************ ****\n");printf("请输入选择(1~7):");acidity, mL.; M--calibration of the molar concentration of sodium hydroxide standard solution, moI/L; V--amount of the volume of sodium hydroxide standard solution, Ml; M--the weight of the sample, g. Such as poor meets the requirements, take the arithmetic mean of the second determination as a result. Results one decimal. 6, allowing differential analyst simultaneously or in quick succession for the second determination, the absolute value of the difference of the results. This value should be no more than 1.0. 1, definitions and principles for determination of ash in starches, starch and ash: starch samples of ash the residue obtained after weight. Original sample residue weight of sample weight or weight expressed as a percentage of the dry weight of the sample. Samples of ash at 900 ? high temperature until ashing sample ... The Crucible: determination of Platinum or other conditions of the affected material, capacity of 50mL. Dryer: has effectively adequate drying agent and-perforated metal plate or porcelain. Ashing furnaces: device for controlling and regulating temperature, offers 900 incineration temperature of 25 c. Analytical balance. Electric hot plate or Bunsen. 3, crucible of analysis steps preparation: Crucible mustfirst wash with boiling dilute hydrochloric acid, then wash with a lotof water and then rinse with distilled water. Wash the Crucible within ashing furnace, heated at 900 to 25 ? 30min, and in the desiccator to cool to room temperature and then weighing,scanf("%d",&choice);getchar();switch(choice){case 1:top=Init_Linkstack();if(top)printf("置空栈成功!\n");break;case 2:if(Empty_Linkstack(top))printf("此为空栈.\n");elseprintf("此不为空栈.\n");;break;case 3:printf("请输入一个整数:");scanf("%d",&x);if(Push_Linkstack(top,x))printf("入栈成功.\n");elseprintf("栈已满,无法入栈.\n");;break;case 4:if(Pop_Linkstack(top,&x))printf("出栈成功,出栈元素为:%d\n",x);elseprintf("出栈失败,因栈为空.\n");break;case 5:if(Top_Linkstack(top,&x))printf("取栈顶元素成功,栈顶元素为:%d\n",x);elseprintf("取栈顶元素失败,因栈为空.\n");break;case 6:Printf_Linkstack(top);break;case 7:printf("谢谢使用!\n");break;default :printf("输入错误，请重新输入!\n");break;}}while(choice!=7);return 0;}二.队列1.宏定义2.结构体3.基本函数4.主函数acidity, mL.; M--calibration of the molar concentration of sodium hydroxide standard solution, moI/L; V--amount of the volume of sodium hydroxide standard solution, Ml; M--the weight of the sample, g. Such as poor meets the requirements, take the arithmetic mean of the second determination as a result. Results one decimal. 6, allowing differential analyst simultaneously or in quick succession for the second determination, the absolute value of the difference of the results. Thisvalue should be no more than 1.0. 1, definitions and principles for determination of ash in starches, starch and ash: starch samples of ash the residue obtained after weight. Original sample residue weight of sample weight or weight expressed as a percentage of the dry weight of the sample. Samples of ash at 900 ? high temperature until ashing sample ... The Crucible: determination of Platinum or other conditions of the affected material, capacity of 50mL. Dryer: has effectively adequate drying agent and-perforated metal plate or porcelain. Ashing furnaces: device for controlling and regulating temperature, offers 900 incineration temperature of 25 c. Analytical balance. Electric hot plate or Bunsen. 3, crucible of analysis steps preparation: Crucible mustfirst wash with boiling dilute hydrochloric acid, then wash with a lot of water and then rinse with distilled water. Wash the Crucible within ashing furnace, heated at 900 to 25 ? 30min, and in the desiccator to cool to room temperature and then weighing,。

栈的基本操作代码引言栈（Stack）是一种常见的数据结构，具有后进先出（Last In First Out，LIFO）的特性。

栈的基本操作包括入栈（Push）、出栈（Pop）、获取栈顶元素（Top）和判断栈是否为空（IsEmpty）。

本文将详细介绍栈的基本操作代码及其实现。

一、栈的定义栈是一种线性数据结构，仅允许在一端进行插入和删除操作。

这一端被称为栈顶，另一端称为栈底。

栈的插入操作叫做入栈，删除操作叫做出栈。

栈的特性决定了最后插入的元素最先删除。

二、栈的基本操作2.1 入栈（Push）入栈操作将一个元素添加到栈的栈顶。

具体实现如下：class Stack:def __init__(self):self.stack = []def push(self, item):self.stack.append(item)2.2 出栈（Pop）出栈操作将栈顶元素删除并返回。

具体实现如下：class Stack:def __init__(self):self.stack = []def push(self, item):self.stack.append(item)def pop(self):if not self.is_empty():return self.stack.pop()else:return None2.3 获取栈顶元素（Top）获取栈顶元素操作不改变栈的结构，仅返回栈顶元素的值。

具体实现如下：class Stack:def __init__(self):self.stack = []def push(self, item):self.stack.append(item)def pop(self):if not self.is_empty():return self.stack.pop()else:return Nonedef top(self):if not self.is_empty():return self.stack[-1]else:return None2.4 判断栈是否为空（IsEmpty）判断栈是否为空操作用于检测栈内是否还有元素。

数据结构(c语言版)第三版习题解答数据结构（C语言版）第三版习题解答1. 栈(Stack)1.1 栈的基本操作栈是一种具有特定限制的线性表，它只允许在表的一端进行插入和删除操作。

栈的基本操作有：（1）初始化栈（2）判断栈是否为空（3）将元素入栈（4）将栈顶元素出栈（5）获取栈顶元素但不出栈1.2 栈的实现栈可以使用数组或链表来实现。

以数组为例，声明一个栈结构如下：```c#define MAX_SIZE 100typedef struct {int data[MAX_SIZE]; // 存储栈中的元素int top; // 栈顶指针} Stack;```1.3 栈的应用栈在计算机科学中有广泛的应用，例如计算表达式的值、实现函数调用等。

下面是一些常见的栈应用：（1）括号匹配：使用栈可以检查一个表达式中的括号是否匹配。

（2）中缀表达式转后缀表达式：栈可以帮助我们将中缀表达式转换为后缀表达式，便于计算。

（3）计算后缀表达式：使用栈可以方便地计算后缀表达式的值。

2. 队列(Queue)2.1 队列的基本操作队列是一种按照先进先出（FIFO）原则的线性表，常用的操作有：（1）初始化队列（2）判断队列是否为空（3）将元素入队（4）将队头元素出队（5）获取队头元素但不出队2.2 队列的实现队列的实现一般有循环数组和链表两种方式。

以循环数组为例，声明一个队列结构如下：```c#define MAX_SIZE 100typedef struct {int data[MAX_SIZE]; // 存储队列中的元素int front; // 队头指针int rear; // 队尾指针} Queue;```2.3 队列的应用队列在计算机科学中也有广泛的应用，例如多线程任务调度、缓存管理等。

下面是一些常见的队列应用：（1）广度优先搜索：使用队列可以方便地实现广度优先搜索算法，用于解决图和树的遍历问题。

（2）生产者-消费者模型：队列可以用于实现生产者和消费者之间的数据传输，提高系统的并发性能。

用堆栈实现四则运算c语言堆栈是一种常见的数据结构，它符合先进后出的原则。

在四则运算中，我们可以借助堆栈这种数据结构实现运算，方便高效，不易出错。

堆栈的实现包括两个基本操作：Push（入栈）和Pop（出栈）。

我们可以以此设计四则运算。

首先，我们需要将输入的四则运算表达式转换成后缀表达式。

后缀表达式也叫逆波兰表达式，相对于中缀表达式而言，运算符在后面，操作数在前面，这样方便计算机进行读取和计算。

例如：中缀表达式：5+3*2后缀表达式：5 3 2 * +将中缀表达式转换成后缀表达式，我们需要用到堆栈。

具体的实现方法是，从左向右遍历表达式，如果是数字，则直接输出；如果是符号，则将其与堆栈顶的符号进行比较，如果优先级高就入栈，否则不断将符号出栈并输出，直到当前符号优先级大于堆栈顶符号优先级，最后将当前符号入栈。

例如：表达式：5+3*2堆栈操作：1.将5输出，堆栈为空2.遇到+号，入栈3.将3输出，堆栈顶为+号4.遇到*号，入栈5.将2输出，堆栈顶为*号6.输出*号，堆栈顶为+号7.输出+号，堆栈为空得到后缀表达式：5 3 2 * +有了后缀表达式，我们可以用堆栈进行计算。

具体方法是，从左向右遍历后缀表达式，如果是数字则入栈，如果是符号则将栈顶两个数字出栈并进行计算，将结果入栈，最终得到最终的计算结果。

例如：后缀表达式：5 3 2 * +堆栈操作：1.将5入栈2.将3入栈3.遇到*号，出栈3和2，进行计算得到6，将6入栈4.将栈顶元素5出栈5.遇到+号，出栈6和5，进行计算得到11，将11入栈得到计算结果：11通过堆栈实现四则运算，可以有效简化我们的计算流程，避免复杂的优先级判断和计算错误。

同时，堆栈为我们提供了一种更加高效的数据结构，不仅在四则运算中可以发挥作用，在其他应用中也很常见。

当然，在实际应用中，我们需要考虑到多种情况的处理，例如负数、小数、括号等，以及错误处理等细节问题，才能保证算法的正确性和可靠性。