剑指Offer_18 发表于 2017-12-02 | 分类于 剑指Offer 题目操作给定的二叉树,将其变换为源二叉树的镜像。 解题思路123456789101112二叉树的镜像定义:源二叉树 8 / \ 6 10 / \ / \ 5 7 9 11 镜像二叉树 8 / \ 10 6 / \ / \ 11 9 7 5 解法一: 递归实现 1234567891011121314151617181920212223242526/**public class TreeNode { int val = 0; TreeNode left = null; TreeNode right = null; public TreeNode(int val) { this.val = val; }}*/public class Solution { public void Mirror(TreeNode root) { TreeNode aux = null; if(root != null){ aux = root.left; root.left = root.right; root.right = aux; Mirror(root.left); Mirror(root.right); } }} 解法二: 非递归实现