tut2-zad3c

include <iostream>
#include <iomanip>
#include <complex>

const double PI=4*atan(1);

int main ()
{
    int n;
    std::cout<<"Unesite n: ";
    std::cin>>n;

   double x(0), fi(0);
   std::complex<double> z(0,0);



    for (int i(1); i<=n; i++)
        {

            std::cout<<"Z"<<i<<"= ";
            std::cin>>x;

            std::cout<<"fi"<<i<<"= ";
            std::cin>>fi;
            z+=1./std::polar(x,(fi*180)/PI);


        }
        std::cin.ignore(10000, '\n');
        z=1./z;
        std::cout<<"Paralelna veza ovih elemenata ima R= "<<std::abs(z)<<" i fi="<<std::arg(z)*180/PI;
    return 0;
}