89 1 (7)

#include <iostream>
#include <vector>
#include <algorithm>


using namespace std;


bool even(int k)
{
    return k % 2 == 0 ? true : false;
}
int main()
{
    int n;
    cin >> n;
    vector<int> a(n);
    for (int i = 0; i < n; ++i)
    {
        cin >> a[i];
    }
    cout << count_if(a.begin(), a.end(), even);

}