Invert Binary Tree - Leetcode 226 - Python - Depth First Search
0:00 - Read the problem
0:40 - Solution
2:20 - Coding solution
4:20 - How to remember
Problem link: https://leetcode.com/problems/invert-...
leetcode 226
This question was identified as a google interview question from here: https://github.com/xizhengszhang/Leet...