33. Find EVEN numbers in vector C++

#include <ostream>
#include <iterator>
#include <iostream>
#include <vector>
#include <algorithm>

int main()
{
    using namespace std;

    int vector_size;
    cin >> vector_size;

    vector<int> v;
    for (int i = 0; i < vector_size; ++i)
    {
        int n;
        cin >> n;
        v.push_back(n);
    }

    // Erase–remove idiom
    // https://en.wikipedia.org/wiki/Erase–remove_idiom
    v.erase(remove_if(v.begin(), v.end(), [](int n) { return n % 2 == 0; }), v.end());

    if ( v.size() == vector_size )
        cout << "EVEN not found";
    else
        copy(v.begin(), v.end(), ostream_iterator<int>(cout, ""));

    cout << endl;

    return 0;
}