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160 lines
3.8 KiB
C++
160 lines
3.8 KiB
C++
/**
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* @author huihut
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* @E-mail:huihut@outlook.com
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* @version 创建时间：2016年9月9日
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* 说明：本程序实现了一个顺序栈。
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* 功能：有初始化、销毁、判断空、清空、入栈、出栈、取元素的操作。
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*/
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#include "stdio.h"
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#include "stdlib.h"
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#include "malloc.h"
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//5个常量定义
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#define TRUE 1
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#define FALSE 0
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#define OK 1
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#define ERROR 0
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#define OVERFLOW -1
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//测试程序长度定义
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#define LONGTH 5
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//类型定义
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typedef int Status;
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typedef int ElemType;
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//顺序栈的类型
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typedef struct {
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ElemType *elem;
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int top;
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int size;
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int increment;
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} SqSrack;
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//函数声明
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Status InitStack_Sq(SqSrack &S, int size, int inc); //初始化顺序栈
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Status DestroyStack_Sq(SqSrack &S); //销毁顺序栈
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Status StackEmpty_Sq(SqSrack S); //判断S是否空，若空则返回TRUE，否则返回FALSE
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void ClearStack_Sq(SqSrack &S); //清空栈S
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Status Push_Sq(SqSrack &S, ElemType e); //元素e压入栈S
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Status Pop_Sq(SqSrack &S, ElemType &e); //栈S的栈顶元素出栈，并用e返回
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Status GetTop_Sq(SqSrack S, ElemType &e); //取栈S的栈顶元素，并用e返回
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//初始化顺序栈
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Status InitStack_Sq(SqSrack &S, int size, int inc) {
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S.elem = (ElemType *)malloc(size * sizeof(ElemType));
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if (NULL == S.elem) return OVERFLOW;
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S.top = 0;
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S.size = size;
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S.increment = inc;
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return OK;
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}
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//销毁顺序栈
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Status DestroyStack_Sq(SqSrack &S) {
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free(S.elem);
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S.elem = NULL;
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return OK;
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}
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//判断S是否空，若空则返回TRUE，否则返回FALSE
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Status StackEmpty_Sq(SqSrack S) {
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if (0 == S.top) return TRUE;
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return FALSE;
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}
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//清空栈S
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void ClearStack_Sq(SqSrack &S) {
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if (0 == S.top) return;
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S.size = 0;
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S.top = 0;
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}
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//元素e压入栈S
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Status Push_Sq(SqSrack &S, ElemType e) {
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ElemType *newbase;
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if (S.top >= S.size) {
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newbase = (ElemType *)realloc(S.elem, (S.size + S.increment) * sizeof(ElemType));
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if (NULL == newbase) return OVERFLOW;
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S.elem = newbase;
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S.size += S.increment;
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}
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S.elem[S.top++] = e;
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return OK;
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}
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//取栈S的栈顶元素，并用e返回
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Status GetTop_Sq(SqSrack S, ElemType &e) {
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if (0 == S.top) return ERROR;
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e = S.elem[S.top - 1];
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return e;
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}
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//栈S的栈顶元素出栈，并用e返回
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Status Pop_Sq(SqSrack &S, ElemType &e) {
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if (0 == S.top) return ERROR;
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e = S.elem[S.top - 1];
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S.top--;
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return e;
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}
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int main() {
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//定义栈S
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SqSrack S;
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//定义测量值
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int size, increment, i;
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//初始化测试值
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size = LONGTH;
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increment = LONGTH;
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ElemType e, eArray[LONGTH] = { 1, 2, 3, 4, 5 };
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//显示测试值
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printf("---【顺序栈】---\n");
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printf("栈S的size为：%d\n栈S的increment为：%d\n", size, increment);
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printf("待测试元素为：\n");
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for (i = 0; i < LONGTH; i++) {
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printf("%d\t", eArray[i]);
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}
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printf("\n");
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//初始化顺序栈
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if (!InitStack_Sq(S, size, increment)) {
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printf("初始化顺序栈失败\n");
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exit(0);
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}
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printf("已初始化顺序栈\n");
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//入栈
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for (i = 0; i < S.size; i++) {
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if (!Push_Sq(S, eArray[i])) {
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printf("%d入栈失败\n", eArray[i]);
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exit(0);
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}
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}
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printf("已入栈\n");
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//判断非空
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if(StackEmpty_Sq(S)) printf("S栈为空\n");
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else printf("S栈非空\n");
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//取栈S的栈顶元素
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printf("栈S的栈顶元素为：\n");
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printf("%d\n", GetTop_Sq(S, e));
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//栈S元素出栈
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printf("栈S元素出栈为：\n");
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for (i = 0, e = 0; i < S.size; i++) {
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printf("%d\t", Pop_Sq(S, e));
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}
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printf("\n");
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//清空栈S
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ClearStack_Sq(S);
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printf("已清空栈S\n");
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return 0;
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}
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