Grokking 75: Top Coding Interview Questions
Ask Author
Back to course home

0% completed

Vote For New Content
Maximum Difference Between Node and Ancestor (medium)
On this page

Problem Statement

You are given the root of a binary tree. Each node in the tree has a unique value.

Find the maximum difference between the value of any node and the value of any ancestor of that node.

An ancestor of a node is any node on the path from the root to that node, excluding the node itself.

Examples

Example 1:

  • Input: [5, 3, 8, 1, 4, null, 10]
    5
   / \
  3   8
 / \   \
1   4  10
  • Output: 5
  • Explanation: The maximum difference is between node 10 and its ancestor node 5 (|10 - 5| = 5).

Example 2:

.....

.....

.....

Like the course? Get enrolled and start learning!

On this page