pa_02_r8

#include <stdio.h>
#include <stdlib.h>
#include <math.h>

double reihe1(int x_eingabe) {
    double nenner = 0.5;
    double erg_r1 =0.0;
    int i;
    for(i = 1; i < x_eingabe; i++)
    {
        nenner = nenner + nenner;
        erg_r1 = erg_r1 + (1/nenner);
    }
	return (erg_r1);
}




int main()
{

    int benein;
    scanf("%i",&benein);
    benein = benein / 10000;
    (benein <= 10) && (benein=10);



	double reihe1_wert = reihe1(benein);
	double reihe1_wert_ggu = reihe1(999999);
	printf("Reihe1: %.6lf its: %i Reihe 1 ggu: %lf\n", reihe1_wert,benein,reihe1_wert_ggu);

	reihe1_wert = reihe1_wert*10;
	printf("log(1+ %.3lf) = %lf\n",reihe1_wert,log1p(reihe1_wert));

	double y = (-1 * reihe1_wert) / (1 + reihe1_wert);
	printf("y: %lf\n",y);


	double x = y;
	double k;
	double wert;
	double zaeler;
	double nenner;
	double ergeb;
	double vz = -1;
	int ii;
	int test;
	int test2;
	test2 = (log1p(reihe1_wert) * 1000000);


	//for(ii = 1; test < test2; ii++)
	while (1!=2){


    vz = vz * -1;
    k++;
    zaeler = pow(x,k);
	nenner =k;
	wert = (zaeler / nenner) * vz;
	ergeb = ergeb + wert;

test = fabs(ergeb) * 1000000;
printf("%i %i\n",test,test2);
if (test == test2)
    {
        break;
        }

	}


	return 0;
}