03. Quadratic Equation

#include <iostream>
#include <cmath>

using namespace std;

int main() {
    double a, b, c;
    cin >> a >> b >> c;

    double d = pow(b, 2) - 4 * a * c;
    double x1 = (-b + sqrt(d)) / (2 * a);
    double x2 = (-b - sqrt(d)) / (2 * a);

    if (d < 0) {
        cout << "no roots" << endl;
    }
    else if (d == 0) {
        cout << -b / (2 * a) << endl;
    }
    else {
        cout << x1 << " " << x2 << endl;
    }

    return 0;
}