算法- 分治算法（实现汉诺塔）

￡神魔★判官ぃ 2023-07-03 10:33 8阅读 0赞

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package Algorithm.dac;
    
    public class Hannoitower { 
        public static void main(String []args){ 
            hannoiTower(5,'A', 'B', 'C');
    
        }
        //汉诺塔移动方法
        //使用分治算法
        public static void hannoiTower(int num, char a, char b, char c){ 
            //如果只有一个盘
            if (num == 1){ 
                System.out.println("第1个盘:" + a + "->" + c);
            }else { 
                //如果n>=2,总是看做两个盘，最下面的一个盘和上面的所有盘
                //1.把上面的所有盘 A=>B,移动过程会使用到c
                hannoiTower(num -1, a, c, b);
                //2.把最下面的盘 A-C
                System.out.println("第"+num+"个盘:" + a + "->" + c);
                //3.把b塔的所有盘移动到c,移动过程使用到a塔
                hannoiTower(num-1, b, a, c);
            }
        }
    }

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