S4 - zad.12

#include <iostream>
#include <cmath>
#include <iomanip>

double Aritmeticka(int n)
{
    int cifra, AS(0), br(0);
    while(n!=0)
    {
        cifra=n%10;
        AS+=cifra;
        br++;
        n/=10;
    }
    return double(AS)/br;
}

double Harmonijska(int n)
{
    int cifra, br(0);
    double HS(0);
    while(n!=0)
    {
        cifra=n%10;
        HS+=1./(double(cifra));
        br++;
        n/=10;
    }
    return  1./(HS/(double)br);
}

void Sredine(int N, double &AS, double &HS)
{
    AS=Aritmeticka(N);
    HS=Harmonijska(N);
}

int main()
{
    int N;
    double AS, HS;
    std::cout<<"Unesi broj: ";
    std::cin>>N;
    Sredine(N, AS, HS);
    std::cout<<std::endl<<"Aritmeticka: "<<std::setprecision(3)<<AS
             <<std::endl<<"Harmonijska: "<<std::setprecision(3)<<HS;

    return 0;
}