Skip to content
On this page

104. Maximum Depth of Binary Tree share

Problem Statement:

Given the root of a binary tree, return its maximum depth.

A binary tree's maximum depth is the number of nodes along the longest path from the root node down to the farthest leaf node.

Example 1:

Input: root = [3,9,20,null,null,15,7]
Output: 3

Example 2:

Input: root = [1,null,2]
Output: 2

Constraints:

  • The number of nodes in the tree is in the range [0, 104].
  • -100 <= Node.val <= 100

Solution:

java
public class MaximumDepthOfBinaryTree {

    public static int maxDepth(TreeNode root) {
        if (root == null)
            return 0;
        int depth = Math.max(maxDepth(root.left), maxDepth(root.right)) + 1;
        return depth;
    }
}

...


Released under the MIT License.