Package g0201_0300.s0226_invert_binary_tree

Class Solution

java.lang.Object

g0201_0300.s0226_invert_binary_tree.Solution

public class Solution
extends Object

226 - Invert Binary Tree.<p>Easy</p> <p>Given the <code>root</code> of a binary tree, invert the tree, and return <em>its root</em>.</p> <p><strong>Example 1:</strong></p> <p><img src="https://assets.leetcode.com/uploads/2021/03/14/invert1-tree.jpg" alt="" /></p> <p><strong>Input:</strong> root = [4,2,7,1,3,6,9]</p> <p><strong>Output:</strong> [4,7,2,9,6,3,1]</p> <p><strong>Example 2:</strong></p> <p><img src="https://assets.leetcode.com/uploads/2021/03/14/invert2-tree.jpg" alt="" /></p> <p><strong>Input:</strong> root = [2,1,3]</p> <p><strong>Output:</strong> [2,3,1]</p> <p><strong>Example 3:</strong></p> <p><strong>Input:</strong> root = []</p> <p><strong>Output:</strong> []</p> <p><strong>Constraints:</strong></p> <ul> <li>The number of nodes in the tree is in the range <code>[0, 100]</code>.</li> <li><code>-100 <= Node.val <= 100</code></li> </ul>

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
TreeNode	invertTree(TreeNode root)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Solution

public Solution()

Method Details

invertTree

public TreeNode invertTree(TreeNode root)