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编写一个程序,实现顺序栈的各种基本运算。

2013-11-14 16:25 1091 查看
完成如下功能:

(1)初始化栈s;

(2)判断栈s是否非空;

(3)依次进栈元素a,b,c,d,e

(4)判断栈s是否非空;

(5)输出栈长度;

(6)输出从栈顶到栈底元素;

(7)输出出栈序列;

(8)判断栈s是否非空;

(9)释放栈。

代码:

#include"iostream"
#include"malloc.h"
using namespace std;
#define MaxSize 50

typedef struct{
char data[MaxSize];
int top;
}SqStack;

void InitStack(SqStack *&s){
s=(SqStack *)malloc(sizeof(SqStack));
s->top=-1;
}

bool StackEmpty(SqStack *s){
return(s->top==-1);
}

bool Push(SqStack *&s,char e){
if(s->top==MaxSize-1)
return false;
s->top++;
s->data[s->top]=e;
return true;
}

int StackLength(SqStack *s){
return (s->top+1);
}

bool Pop(SqStack *s){
int i;
i=s->top;
if(s->top==-1)
return false;
else{
for(;s->top!=-1;s->top--)
{
cout << s->data[s->top] << "  " ;
}
s->top=i;
cout << endl;
return true;
}

}

bool Get(SqStack *&s){
if(s->top==-1)
return false;
else{
for(;s->top!=-1;s->top--)
{
cout << s->data[s->top] << "  " ;
}
cout << endl;
return true;
}
}

void DestroyStack(SqStack* &s){
free(s);
}

void main()
{
SqStack* s;
InitStack(s);
cout << StackEmpty(s) << endl;
Push(s,'a');
Push(s,'b');
Push(s,'c');
Push(s,'d');
Push(s,'e');
cout << StackEmpty(s) << endl;
cout << StackLength(s) << endl;
Pop(s);
Get(s);
cout << StackEmpty(s) << endl;
DestroyStack(s);
}
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