Push,POP, Enqueue and Dequeue in C++.

#include <iostream>

#define size 8

using namespace std;

int array[size];

int front=-1,rear=-1;

int count=0;

void enqueue()

{

    if(size==count)

    {

        cout<<"Memory is Full"<<endl;

        return;

    }

    if(front==-1)

    {

        front++;

        rear++;

    }

    else

    {

        rear = (rear +1) % (size+1);

    }

    cout<<"Data: ";

    int data;

    cin>>data;

    array[rear] = data;

    count++;

}

void dequeue()

{

    if(count==0)

    {

        cout<<"Memory is Empty "<<endl;

        return;

    }

    front = (front +1) % (size +1);

    count--;

}

void push()

{

    if(size==count)

    {

        cout<<"Memory is Full"<<endl;

        return;

    }

    cout<<"Data: ";

    int data;

    cin>>data;

    if(front == -1)

    {

        front++;

        rear++;

    }

    else

    {

        rear = (rear +1) % (size+1);

    }

    array[rear] = data;

    count++;

}

void pop()

{

    if(count==0)

    {

        cout<<"Memory is Empty "<<endl;

        return;

    }

    rear=(rear -1) % (size+1);

    count--;

}

void print()

{

    int c,i;

    if(count==0)

    {

        cout<<"Memory is Empty"<<endl<<endl;

        return;

    }

    cout<<"Your Memory: ";

    for(i=front,c=1; c<=count; i = (i+1)%size,c++)

    {

        cout<<array[i]<<" ";

    }

    cout<<endl;

}

void menu()

{

    int n;

    cout<<"Enter Total Entry: ";

    cin>>n;

    cout<<"Press E for EnqueuePress D for DequeuePress P for PushPress P for POP"<<endl;

    while(n>0)

    {

        char choice;

        cout<<"Your Choice: ";

        cin>>choice;

        if(choice == 'E')

        {

            enqueue();

        }

        if(choice == 'D')

        {

            dequeue();

        }

        if(choice == 'P')

        {

            push();

        }

        if(choice == 'O')

        {

            pop();

        }

        n--;

    }

}

int main()

{

    menu();

    print();

    return 0;

}