#include <iostream>
#include <math.h>
#include <iomanip>
#include <conio.h>

using namespace std;

double f1(double c)
{
    double z = pow(c, 3.0) - c - 1;
    return z;
}

double f2(double k) {
    double g = 3 * (pow(k, 2.0)) - 1;
    return g;

}

int main()
{
    int n = 0;

    long double b = 1.5, a = -1.5, c, E = 0.001,x;

    while (b - a > E) {
        n++;
        c = (a + b) / 2;
        if (f1(b) * f1(c) < 0)
            a = c;
        else
            b = c;

    }

    x = (a + b) / 2;

    cout << "x=" << x << endl;
    cout << "n=" << n << endl;
    system("pause");
    return 0;
}