Ex 4

#include <iostream>
using namespace std;
int v[100];
void citire (int n)
{
    for (int i=1;i<n+1;i++)
        cin>>v[i];
}
int f (int s, int d)
{
    if (s==d)
    {
        if(v[s]%2==0)
            return 1;
        else return 0;
    }
    else {
        int m=(s+d)/2;
        return f(s, m)+f(m+1, d);
    }
}
int main()
{
    int n;
    cin>>n;
    citire(n);
    cout<<f(1, n);
    return 0;
}