🌈个人主页：羽晨同学 

💫个人格言:“成为自己未来的主人~”  

思路：

我们在这里采用的是用数组的形式实现循环链表，我认为这个用数组是更为简单的，我们只需要控制下标就可以实现循环链表的效果。具体实现代码如下： 

typedef struct {
    int*a;
    int front;
    int rear;
    int size;
    int capacity;
} MyCircularQueue;


MyCircularQueue* myCircularQueueCreate(int k) {
    MyCircularQueue*obj=(MyCircularQueue*)malloc(sizeof(MyCircularQueue));
    obj->a=(int*)malloc(sizeof(int)*(k+1));
    obj->front=0;
    obj->rear=0;
    obj->size=0;
    obj->capacity=k+1;
    return obj;
}

bool myCircularQueueEnQueue(MyCircularQueue* obj, int value) 
{
    if((obj->rear+1)%(obj->capacity)==obj->front)
    {
        return false;
    }
    else
    {
        obj->a[obj->rear]=value;
        //4
        obj->rear=(obj->rear+1)%(obj->capacity);
    }
    obj->size++;
    return true;

}

bool myCircularQueueDeQueue(MyCircularQueue* obj) 
{
    if(obj->front==obj->rear)
    {
        return false;
    }
    else{
        obj->front=(obj->front+1)%(obj->capacity);
    }
    obj->size--;
    return true;
}

int myCircularQueueFront(MyCircularQueue* obj) 
{
    if(obj->size>=1)
    {
        return obj->a[obj->front];
    }
    else
    {
        return -1;
    }
}

int myCircularQueueRear(MyCircularQueue* obj) 
{
    if(obj->size>=1)
    {
        return obj->a[(obj->rear-1+obj->capacity)%(obj->capacity)];
    }
    else
    return -1;
    
}

bool myCircularQueueIsEmpty(MyCircularQueue* obj) 
{
    return obj->front==obj->rear;   
}

bool myCircularQueueIsFull(MyCircularQueue* obj) 
{
    return (obj->rear+1)%(obj->capacity)==obj->front;
}

void myCircularQueueFree(MyCircularQueue* obj) 
{
    free(obj->a);
    obj->a=NULL;
    obj->front=obj->rear=obj->size=obj->capacity=0;
    free(obj);    
}

/**
 * Your MyCircularQueue struct will be instantiated and called as such:
 * MyCircularQueue* obj = myCircularQueueCreate(k);
 * bool param_1 = myCircularQueueEnQueue(obj, value);
 
 * bool param_2 = myCircularQueueDeQueue(obj);
 
 * int param_3 = myCircularQueueFront(obj);
 
 * int param_4 = myCircularQueueRear(obj);
 
 * bool param_5 = myCircularQueueIsEmpty(obj);
 
 * bool param_6 = myCircularQueueIsFull(obj);
 
 * myCircularQueueFree(obj);
*/