using System;
public class Program
{
public class Razmiana
public static void swap(ref double x,ref double y)
double c;
c=x;
x = y;
y=c;
Console.WriteLine("Novata stoynost na x=" + x);
Console.WriteLine("Novata stoynost na y=" +y);
}
public static void Main()
double a=5, b=6;
Razmiana.swap(ref a, ref b);