《剑指offer》——二叉树的镜像

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

/*
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) {
if(root == null)
return;
TreeNode temp = root.left;
root.left = root.right;
root.right = temp;
if(root.left != null)
Mirror(root.left);
if(root.right != null)
Mirror(root.right);
}
}