public static dist operator+(dist M1, dist M2)
{
dist sum = new dist();
sum.km = M1.km + M2.km;
sum.m = M1.m + M2.m;
return(sum);
}
static void Main(string[] args)
{
dist d = new dist(2000); dist d2 = new dist(3220); dist sum = new dist(0);
d.print(); dist sub = new dist();
Console.WriteLine("speed is " + (d.vtime(10)) + " m/s");
d2.print();
sum = d + d2;
Console.WriteLine(sub = d - d2);
Console.WriteLine(sum);
sum.print();
//dist d1 = new dist(2000); dist d2 = new dist(3000); dist res = null;
//res = d1 - d2; Console.WriteLine(res); Console.WriteLine(res = d1 + d2);
int te = 9000;
dist d0 = new dist();
// te = d0;
// d0 = te;
Console.WriteLine("____________" + d0);
}