LeetCode problem #427 - Construct Quad Tree

In this Python tutorial, I’m solving LeetCode problem #427 - Construct Quad Tree. This problem is about representing a binary grid as a quad tree, a data structure where each node has four children. The solution involves recursively dividing the grid into quadrants, creating leaf nodes when a quadrant is uniform (all 0's or all 1's). I’m sharing my solution as part of my practice, hoping it helps others understand this approach. Learning from various tutorials helped me apply recursion effectively here, and I hope my breakdown makes it clearer for you too!

Problem Link:

Explanation:
This solution uses a recursive function to divide the grid, checking if each section has the same value. If a section is uniform, it creates a leaf node; otherwise, it divides further into four sub-grids, recursively building the quad tree structure. I'll walk through each part of this approach to show how it simplifies the grid representation. I hope this helps you understand the recursive logic in quad trees!