sqrt_equation.cpp

#include <iostream>
#include <vector>
#include <cmath>

std::vector<double > calc_sqrt_results(int a, int b, int c)
{
    std::vector<double> results;
    double discriminant = b * b - (4 * a * c);

    if (discriminant == 0) {
        results.push_back( (0 - b) / (2 * a) );
    }
    else if (discriminant > 0) {
        double d_root = sqrt(discriminant);
        results.push_back((-b + d_root) / (2 * a));
        results.push_back((-b - d_root) / (2 * a));
    }

    return results;
}

int main() {
    std::vector<double> results;
    int a, b, c;
    std::cin >> a >> b >> c;
    results = calc_sqrt_results(a, b, c);

    for (int i = 0; i < results.size(); ++i) {
        std::cout << results[i] << ' ';
    }
}