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| #include <stdio.h>
// 元素 elem 進棧,a 為數組,top 值為目前堆疊的棧頂位置
int push(int* a,int top,int elem)
{
a[++top]=elem;
return top;
}
// 資料元素出棧
int pop(int * a,int top)
{
if (top==-1)
{
printf("空堆疊");
return -1;
}
printf("彈棧元素:%d\n",a[top]);
top--;
return top;
}
int main(void)
{
int a[100];
int top=-1;
top = push(a, top, 1);
top = push(a, top, 2);
top = push(a, top, 3);
top = push(a, top, 4);
top = pop(a, top);
top = pop(a, top);
top = pop(a, top);
top = pop(a, top);
top = pop(a, top);
return 0;
}
|