汉诺塔分为三个大步骤:
1.A柱的(n-1)个盘子从A经C到B;
2.A柱的第n个盘子从A直接到C;
3.B柱的(n-1)个盘子从B经A到C;
class HanoiTower{
public static void move(int n,String frome,String to)
{
System.out.println("frome "+frome+" move "+n+" to "+to);
}
public static void moveDish(int level,String frome,String inter,String to){
if(level==0)
System.out.println("NULL");
else if(level==1)
move(level,frome,to);
else
{
moveDish(level-1,frome,to,inter);// (n-1)个盘子从A经C到B;
move(level,frome,to); // 第n个盘子从A到C;
moveDish(level-1,inter,frome,to); // (n-1)个盘子从B经A到C;
}
}
}
public class Main {
public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
int n=scan.nextInt();
HanoiTower.moveDish(n, "A", "B", "C");
}
}