tut2-zad2

#include <iostream>
#include <iomanip>
#include <vector>

int Period (std::vector<double> v)
{ for (int period(1); period<v.size(); period++)
{
    for (int i(0); i<v.size()-period; i++)
    {
        if (v[i]==v[i+period]) return period;
        break;
    }
}
 return 0;

}

int main() {
std::vector <double> vek(0);
int n;
while (std::cin>>n, n!=0) vek.push_back(n);
int per(Period(vek));
if (Period(vek)!=0) std::cout<<"Period vektora je: "<<per;
else std::cout<<"Elementi vektora nisu periodicni. ";

return 0;
}