#include<stdio.h>
#include<stdlib.h>
#include<math.h>
#define STACK_INIT_SIZE 20
#define STACKINCREMENT 10
typedef char ElemType;
typedef struct
{
ElemType *base;
ElemType *top;
int StackSize;
}sqStack;
void InitStack(sqStack *s)
{
s->base = (ElemType *)malloc(STACK_INIT_SIZE * sizeof(ElemType));
if(!s->base)
{
exit(0);
}
s->top = s->base;
s->StackSize = STACK_INIT_SIZE;
}
void push(sqStack *s, ElemType e)
{
if(s->top - s->base >= s->StackSize)
{
s->base = (ElemType *)realloc(s->base, (s->StackSize + STACKINCREMENT) * sizeof(ElemType));
if(!s->base)
{
exit(0);
}
}
*(s->top) = e;
s->top++;
}
void pop(sqStack *s, ElemType *e)
{
if(s->top == s->base)
{
return;
}
*e = *--(s->top);
}
int StackLen(sqStack s)
{
return(s.top - s.base);
}
int main()
{
ElemType c;
sqStack s;
int len, i, sum = 0;
InitStack(&s);
printf("请输入二进制数,输入#符号表示结束\n");
//scanf("%c", &c);
//while(c != '#')
while((c = getchar()) != '#')
{
push(&s, c);
}
getchar();
len = StackLen(s);
printf("栈当前的容量是%d\n", len);
for(i = 0; i<len; i++)
{
pop(&s, &c);
sum = sum + (c - 48)*pow(2, i);
printf("转化为十进制的数是%d\n", sum);
}
return 0;
}
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