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顺序表实现栈

顺序表实现栈

以下为数据结构作业
如有错误,请指出,谢谢!

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#include <stdio.h>
#include <malloc.h>
typedef int SElemType;
typedef int Status;
#define INIT_SIZE 100
#define STACKINCREMENT 10
#define Ok 1
#define Error 0
#define True 1
#define False 0
typedef struct
{
SElemType *base;
SElemType *top;
int stacksize;
}SqStack;
Status InitStack(SqStack *s)
{
s->base = (SElemType *)malloc(INIT_SIZE * sizeof(SElemType));
if(!s->base)
{
puts("存储空间分配失败!");
return Error;
}
s->top = s->base;
s->stacksize = INIT_SIZE;
return Ok;
}
Status ClearStack(SqStack *s)
{
s->top = s->base;
return Ok;
}
Status StackEmpty(SqStack *s)
{
if(s->top == s->base)
return True;
else return False;
}
Status Destroy(SqStack *s)
{
free(s->base);
s->base = NULL;
s->top = NULL;
s->stacksize=0;
return Ok;
}
Status GetTop(SqStack *s, SElemType &e)
{
if(s->top == s->base)return Error;
e = *(s->top - 1);
return Ok;
}
Status Push(SqStack *s, SElemType e)
{
if(s->top - s->base >= s->stacksize)
{
s->base = (SElemType *)realloc(s->base, (s->stacksize + STACKINCREMENT) * sizeof(SElemType));
if(!s->base)
{
puts("存储空间分配失败!");
return Error;
}
s->top = s->base + s->stacksize;
s->stacksize += STACKINCREMENT;
}
*s->top++ = e;
return Ok;
}
Status Pop(SqStack *s, SElemType *e)
{
if(s->top == s->base)return Error;
--s->top;
*e = *(s->top);
return Ok;
}
Status StackTraverse(SqStack *s,Status(*visit)(SElemType))
{
SElemType *b = s->base;
SElemType *t = s->top;
while(t > b)visit(*b++);
printf("\n");
return Ok;
}
Status visit(SElemType c)
{
printf("%d ",c);
return Ok;
}
void stack_insert(SqStack *s)
{
int n;
puts("请输入要进栈的个数:");
scanf("%d", &n);
printf("请输入%d个数依次入栈\n",n);
while(n--)
{
int m;
scanf("%d", &m);
Push(s, m);
}
}
int main()
{
int n;
SqStack a;
SqStack *s = &a;
SElemType e;
InitStack(s);
stack_insert(s);
StackTraverse(s, visit);
printf("输入1入栈,输入2出栈,输入0退出!\n");
while(scanf("%d",&n)!=EOF)
{
if(n==1)stack_insert(s);
else if(n==2)
{
if(StackEmpty(s))printf("栈为空!\n");
else
{
Pop(s, &e);
printf("出栈的元素是:%d\n", e);
}
}
else break;
StackTraverse(s, visit);
}
Destroy(s);
return 0;
}

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