miss lab1

#include <stdio.h>
#include <gmpxx.h>

#include <iostream>
#include <string>


int main(int argc, char **argv)
{
    mpz_class d = 20; //dokladnosc
    mpz_class n = 0; //ilosc cyfr
    mpz_class p = 1; //okres


    if(argc > 1)
    {
        d = argv[1];
    }

    std::string sxn;
    mpf_class xn;xn = 0;
    mpf_class xn_sum; xn_sum = 0;
    mpf_class xn_2sum; xn_2sum = 0;

    while(std::cin >> sxn)
    {
        xn = sxn;
        xn_sum += xn;
        xn_2sum += (xn*xn);
        n+=1;
    }

    mpf_class avg = xn_sum / n;
    mpf_class vari = (xn_2sum / n) - avg*avg;

    std::cout << "zadana dokladnosc d=" << d << "\n";
    std::cout << "wpisano n=" << n << " liczb\n";
    std::cout << "srednia= " << avg << "\n";
    std::cout << "wariacja= " << vari << "\n";

    //srednia
    //wariancja
    //okres ciagu

    return 0;
}