Package g0101_0200.s0104_maximum_depth_of_binary_tree

Class Solution

java.lang.Object

g0101_0200.s0104_maximum_depth_of_binary_tree.Solution

public class Solution
extends Object

104 - Maximum Depth of Binary Tree.<p>Easy</p> <p>Given the <code>root</code> of a binary tree, return <em>its maximum depth</em>.</p> <p>A binary tree&rsquo;s <strong>maximum depth</strong> is the number of nodes along the longest path from the root node down to the farthest leaf node.</p> <p><strong>Example 1:</strong></p> <p><img src="https://assets.leetcode.com/uploads/2020/11/26/tmp-tree.jpg" alt="" /></p> <p><strong>Input:</strong> root = [3,9,20,null,null,15,7]</p> <p><strong>Output:</strong> 3</p> <p><strong>Example 2:</strong></p> <p><strong>Input:</strong> root = [1,null,2]</p> <p><strong>Output:</strong> 2</p> <p><strong>Example 3:</strong></p> <p><strong>Input:</strong> root = []</p> <p><strong>Output:</strong> 0</p> <p><strong>Example 4:</strong></p> <p><strong>Input:</strong> root = [0]</p> <p><strong>Output:</strong> 1</p> <p><strong>Constraints:</strong></p> <ul> <li>The number of nodes in the tree is in the range <code>[0, 10⁴]</code>.</li> <li><code>-100 <= Node.val <= 100</code></li> </ul>

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
int	maxDepth(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

maxDepth

public int maxDepth(TreeNode root)