栈与队列操作总结

#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h> //bool类型需要的头文件
#define ERROR 0

typedef int Position;
typedef int ElementType;



   /*栈操作*/
struct SNode
{
    ElementType *Data; /* 存储元素的数组 */
    Position Top;      /* 栈顶指针 */
    int MaxSize;       /* 堆栈最大容量 */
};

typedef struct SNode *Stack;

Stack CreateStack( int MaxSize )
{
    Stack S = (Stack)malloc(sizeof(struct SNode));
    S->Data = (ElementType *)malloc(MaxSize * sizeof(ElementType));
    S->Top = -1;
    S->MaxSize = MaxSize;
    return S;
}

bool IsFull( Stack S )
{
    return (S->Top == S->MaxSize-1);
}

bool Push( Stack S, ElementType X )
{
    if ( IsFull(S) )
    {
        printf("堆栈满");
        return false;
    }
    else
    {
        S->Data[++(S->Top)] = X;
        return true;
    }
}

bool IsEmpty( Stack S )
{
    return (S->Top == -1);
}
ElementType Pop( Stack S )
{
    if ( IsEmpty(S) )
    {
        printf("堆栈空");
        return ERROR; /* ERROR是ElementType的特殊值，标志错误 */
    }
    else
        return ( S->Data[(S->Top)--] );
}



/*队列操作*/
struct QNode
{
    ElementType *Data;     /* 存储元素的数组 */
    Position Front, Rear;  /* 队列的头、尾指针 */
    int MaxSize;           /* 队列最大容量 */
};

typedef struct QNode *Queue;

Queue CreateQueue( int MaxSize )
{
    Queue Q = (Queue)malloc(sizeof(struct QNode));
    Q->Data = (ElementType *)malloc(MaxSize * sizeof(ElementType));
    Q->Front = Q->Rear = 0;
    Q->MaxSize = MaxSize;
    return Q;
}

bool IsQFull( Queue Q )
{
    return ((Q->Rear+1)%Q->MaxSize == Q->Front);
}

bool AddQ( Queue Q, ElementType X )
{
    if ( IsQFull(Q) )
    {
        printf("队列满");
        return false;
    }
    else
    {
        Q->Rear = (Q->Rear+1)%Q->MaxSize;
        Q->Data[Q->Rear] = X;
        return true;
    }
}

bool IsQEmpty( Queue Q )
{
    return (Q->Front == Q->Rear);
}

ElementType DeleteQ( Queue Q )
{
    if ( IsQEmpty(Q) )
    {
        printf("队列空");
        return ERROR;
    }
    else
    {
        Q->Front =(Q->Front+1)%Q->MaxSize;
        return  Q->Data[Q->Front];
    }
}

int main()
{
    printf("Hello world!\n");
    return 0;
}