ex2

#include <iostream>
#include <cmath>

using namespace std;

int main() {

 unsigned long n,nr,uc;

 cout<<"n=";cin>>n;
 nr=0;
 while (n)
 {
     uc=n%10;
     if (uc%2==0)
        nr++;

     n/=10;
 }

 cout<<"nr cifre pare="<<nr;

 return 0;
}