LeetCode 226. 翻转二叉树
/** * Definition for a binary tree node. * public class TreeNode { * int val; * TreeNode left; * TreeNode right; * TreeNode(int x) { val = x; } * } */
class Solution {
public TreeNode invertTree(TreeNode root) {
if(root == null || (root != null && root.left == null && root.right == null)) return root;
TreeNode ileft = invertTree(root.left);
TreeNode iright = invertTree(root.right);
root.left = iright;
root.right = ileft;
return root;
}
}
还没有评论,来说两句吧...