import java.util.ArrayList;


public class Node {
	public int id;
	public boolean user;
	public ArrayList<Node> neighbors;
	
	public Node (int id)
	{
		this.id = id;
		this.user = false;
		neighbors = new ArrayList<Node>();
	}
	
	public void addNeighbor(Node neighbor)
	{
		neighbors.add(neighbor);
		//neighbor.addNeighbor(this);
		neighbor.neighbors.add(this);
	}
}