using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Veuillez saisir les coefficients a,b et c d'un trinôme");

        Console.WriteLine("a=");

        int a = Convert.ToInt32(Console.ReadLine());

        Console.WriteLine("b=");

        int b = Convert.ToInt32(Console.ReadLine());

        Console.WriteLine("c=");

        int c = Convert.ToInt32(Console.ReadLine());

        double d = 0;

        d = (b*b) - (4*a*c);

        if(d>0)

        { 

            double x= (-b - Math.Sqrt(d))/ 2*a;

            double y = (-b + Math.Sqrt(d))/2*a;

        }   

        if (d=0)

        {

        }

    }

}