Maximum Level Sum Binary Tree (LeetCode

Описание: In this video, we solve Maximum Level Sum of a Binary Tree (LeetCode 1161) using Swift and BFS. I show how to calculate the sum of nodes at each level and track which level has the maximum sum, handling negative numbers and tie-breaking rules.
This problem combines BFS traversal with mathematical operations, demonstrating how to maintain state across levels and make comparisons during tree traversal.
📌 What You'll Learn:

Level-by-level sum calculations using BFS in Swift
Proper handling of negative node values in trees
Tie-breaking logic (smallest level wins) implementation
State management during BFS traversal
Swift Int.min usage for initialization patterns
Combining traversal algorithms with mathematical operations

#Swift #LeetCode #BinaryTree #BFS #LevelSum #Mathematics #StateTracking #TreeAlgorithms