I found an tutorial on implementing a sequel using a circular array. I changed the implementation and I am not sure if it is correct or not.

So I have one question

1. I write code by using addCount to record has any add or not, but I can not sure is it correct? If not, please tell me error example.

I found a tutorial on implementing a deque using a circular array. I changed the implementation but I am not sure if it is correct or not.

So I have one question:

1. I wrote code that uses an addCount field to record whether there are any additions, but I'm not sure if it's correct? If not, please tell me where I made an error.

I found implementation-deque-using-circular-array from below url. https://www.geeksforgeeks.org/implementation-deque-using-circular-array/

I change the implement code and I am not sure is correct or not.

---below is code-----

I found an tutorial on implementing a sequel using a circular array. I changed the implementation and I am not sure if it is correct or not.