First and Last element of an array

/*  C++ Program to Display First and Last element of an array  */

#include <iostream>
using namespace std;

int main()
{

    int i,a[50],size;
    cout<<"Enter array size( Max:50 ) :: ";
    cin>>size;
        cout<<"\nEnter array elements :: \n";

        for(i=0; i<size; i++)
        {
            cout<<"\nEnter arr["<<i<<"] Element :: ";
                cin>>a[i];
        }

    cout<<"\nFirst number in the Array :: "<<a[0]<<endl;
    // first element of an array is a[0]
    
    cout<<"\nLast number in the Array :: "<<a[size-1]<<endl;
    // last element of an array is n[SIZE_OF_ARRAY - 1]
    return 0;
}