vertex.java

数独求解器 可以快速求解数独。 bug:不支持无解数独

/*
* @author: [e-mail]
* Copyright: NJUSoftware 2009
*/
import java.util.ArrayList; 
public class Vertex {
	public int _level;
	private int _num;
	private int _count;
	public Vertex(int num){
		_num=num;
		children=new ArrayList<Vertex>();
		_count=0;
		_level=0;
	}
	private ArrayList<Vertex> children;
	public void addChild(Vertex child){
		children.add(child);
		_count++;
	}
	public int getNum() {
		return _num;
	}
	public int getCount(){
		return _count;
	}
	public Vertex getChild(int count){
		return children.get(count);
	}
	public void clearChildren(){
		children.clear();
		_count=0;
	}
	
}