Inserare 1 element in vector la final

#include <iostream>
using namespace std;

#define MAX_SIZE 70

int main()
{
    int v[MAX_SIZE];
    int n;

    cout << "Introdu n (mai mic decat " << MAX_SIZE << ": ";
    cin >> n;

    int a;

    //Inserare
    for (int i = 0; i < n; i++)
    {
        cout << "Introdu valoare: ";
        cin >> a;

        v[i] = a;
    }


    //Afisare
    for (int i = 0; i < n; i++)
    {
        cout << v[i] << " ";
    }

    cout << endl;
    cout << "Mai introdu un numar: ";
    cin >> a;

    v[n] = a; // Inseram pe ultima pozitie
    n++; //Incrementam numarul de elemente imediat dupa

    //Afisare
    for (int i = 0; i < n; i++)
    {
        cout << v[i] << " ";
    }

    return 0;
}