ndczz

class QuadraticSolver {
    public static final int RESULT_BAD = 0;
    public static final int RESULT_ONE = 1;
    public static final int RESULT_TWO = 2;

    public static final Result solve(double a, double b, double c) {
        double d = b * b - 4 * a * c;
        if (d < 0)
            return new Result(RESULT_BAD, 0, 0);
        double sqd = Math.sqrt(d);