#include <iostream>

using namespace std;

float  d,a,b,fa,fb,fx, x, selected_number;


float Bisection(float a, float b){
    int step_nr = 0;
    do{
        step_nr++;
        x = a + b;
        x = x / 2;
        fa = a * a * a - a - 2;
        fb = b * b * b - b - 2;
        fx = x * x * x - x - 2;
        cout << "Krok nr "<< step_nr<<": " << a  << " " << b  << " " << fa << " " << fb << " " << x << " " << fx << endl;
        if(fa >= 0 && fx >= 0 || fa < 0 && fx < 0){
            a = x;
            b = b;
        }else{
            a = a;
            b = x;
        }
    }while(fx > 0.1 || fx < -0.1);

}


int main()
{
    a = 0;
    b = 2;
    x = Bisection(a,b);
    return 0;
}