נושא: קוד ב C# לא עובד

int a;

int b;

int c;

double f;

double s;

Console.Write("Enter a : ");

a = int.Parse(Console.ReadLine());

Console.Write("Enter b : ");

b = int.Parse(Console.ReadLine());

Console.Write("Enter c : ");

c = int.Parse(Console.ReadLine());

f = (-b + Math.sqrt(b * b - 4 - *a * c)) / 2;

s = (-b - Math.sqrt(b * b - 4 - *a * c)) / 2;

if (-4 * a * c > 0) Console.WriteLine("There are two solutions, the solutions are : " + f + " and " + s);

if (-4 * a * c < 0) Console.WriteLine("the isn't any solution");

if (-4 * a * c = 0) Console.WriteLine("There is ont solution, the solution is : " + f);

לא הוא לא עובד ?

f = x1

s = x2