题目描述
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
解题思路
public class Solution { public void Mirror(TreeNode root) { if(root == null) return; swap(root); Mirror(root.left); Mirror(root.right); } public void swap(TreeNode root) { TreeNode t = root.left; root.left = root.right; root.right = t; } }