1161. Maximum Level Sum of a Binary Tree | BFS Level Order | Python

In this video, we solve LeetCode problem 1161: Maximum Level Sum of a Binary Tree.

💡 Problem Summary:
We are given a binary tree where the root is at level 1, its children at level 2, and so on.
Our task is to find the smallest level whose node values sum is maximum.

🧠 Approach Used:
- Level Order Traversal (BFS)
- Calculate sum at each level
- Track maximum sum and corresponding level

⚡ Why BFS?
Because BFS naturally processes nodes level by level, making it perfect for this problem.

⏱️ Time Complexity: O(n)
📦 Space Complexity: O(n)

📌 Language Used: Python

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Видео 1161. Maximum Level Sum of a Binary Tree | BFS Level Order | Python канала CodeExe