Sper ca te ajuta, spor la lucru!
#include <iostream>
#include <string>
using namespace std;
int main()
{
cout << "Nr.: ";
string nr = "";
cin >> nr;
int nrdecinci = 0;
for (int i=0; i < nr.length(); i++)
{
int cifra = nr[i] - 48;
if (cifra == 5)
{
nrdecinci++;
}
}
cout << "Nr. '" + nr + "' are '" + to_string(nrdecinci) + "' de cinci in el.\n";
return 0;
}