static void Main(string[] args)
{
PolyNode p1 = new PolyNode(1, 1, null), p2 = new PolyNode(1, 0, null);
Console.WriteLine(AddPoly(p1, p2));
}
public PolyNode(int x = 0, int y = 0, PolyNode next = null)
{
this.coefficient = x;
this.power = y;
this.next = next;
}
