6-7 在一个数组中实现两个堆栈 (20 分)

Posted 2022-10-05 mile-star

题目地址：https://pintia.cn/problem-sets/15/problems/730

Pop函数成功弹出后应该返回弹出的值，否则就是错的，应该是和PrintStack函数有关

Stack CreateStack(int Maxsize) 
    Stack S = (Stack)malloc(sizeof(struct SNode));
    S->Data = (int *)malloc(sizeof(ElementType)* Maxsize);
    S->MaxSize = Maxsize;
    S->Top1 = -1;
    S->Top2 = Maxsize;
    return S;


bool Push(Stack S, ElementType X, int Tag) 
    if(Tag == 1) 
        if(S->Top1+1 == S->Top2) 
            printf("Stack Full\n");
            return false;
        
        S->Data[++S->Top1] = X;
        return true;
    
    else 
        if(S->Top2 == S->Top1+1) 
            printf("Stack Full\n");
            return false;
        
        S->Data[--S->Top2] = X;
        return true;
    


ElementType Pop(Stack S, int Tag) 
    if(Tag == 1) 
        if(S->Top1 == -1) 
            printf("Stack %d Empty\n", Tag);
            return ERROR;
        
        return S->Data[S->Top1--];
     else 
        if(S->Top2 == S->MaxSize) 
            printf("Stack %d Empty\n", Tag);
            return ERROR;
        
        return S->Data[S->Top2++];
    

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