#define Maxsize 10
typedef struct
{
ElemType data[MaxSize];
int top;
}SqStack;
//初始化栈
void InitStack(SqStack *&s)
{
s = (Sqstack *)malloc(sizeof(SqStack));
s->top = -1;//top 也可以赋为0,当然相应的赋值操作也要变
}
//栈判空
bool StackEmpty(SqStack s)
{
if(s.top == -1)
return true;
else
return false;
}
//入栈操作
bool Push(SqStack &s,ElemType e)
{
if(s.top = = MaxSize-1)//栈满
return false;
s.top ++;
s.data[s.top] = e;
return true;
}
//出栈操作
bool Pop(SqStack &s,ElemType e)
{
if(s.top==-1)
return false;
e = s.data[s.top];
s.top--;
return true;
}
//读栈定元素
bool Gettop(SqStack &s,ElemType e)
{
if(s.top == -1)
return false;
e = s.data[s.top];
return true;
}
//共享栈
typedef struct {
ElemType data[MaxSize];
int top0;
int top1;
}ShStack;
void InitStack(SqStack &s)
{
s.top0=-1;//栈空
s.top1=MaxSize;//栈满
}
//判断栈是否满了
bool MStack(SqStack s)
{
if(s.top0+1 == s.top1)
return true;
}