LeetCode 1339: Maximum Product of Splitted Binary Tree | CSharp Solution | Binary Tree DFS

📋 Solve the challenge of splitting a binary tree into two subtrees by removing one edge, maximizing the product of the sums of both resulting subtrees. #binarytree #dfs #leetcode #csharp ⏱️ **Time Complexity:** O(n) where n is the number of nodes in the tree 🧮 **Space Complexity:** O(h) where h is the height of the tree (due to recursion stack) ## 📍 Timestamps 00:00 - Understanding the problem statement 00:41 - Discuss algorithm 01:53 - Discuss algorithm 03:48 - Big O Notation calculated 04:26 - C# code walk-through 05:43 - Solution analysis - runtime + memory 05:50 - Conclusion ## 🧠 Key Concepts - Binary Tree Traversal - Depth-First Search (DFS) - Subtree Sum Calculation - Modular Arithmetic (for large results) - Tree Node Relationships ## 💡 Learning Points - How to efficiently calculate sums in a binary tree - Techniques for optimizing tree-based calculations - Handling large integer results with modulo - Finding optimal partitions in tree structures ## 🔄 Related Problems - LeetCode 124: Binary Tree Maximum Path Sum - LeetCode 543: Diameter of Binary Tree - LeetCode 1026: Maximum Difference Between Node and Ancestor - LeetCode 687: Longest Univalue Path ## 👥 Target Audience This video is for intermediate programmers preparing for coding interviews, especially those focusing on tree-based problems and C# implementations. ## 📚 Prerequisites - Basic understanding of binary trees - Familiarity with tree traversal algorithms - C# programming knowledge - Understanding of recursion concepts ## 🔗 Links - Problem statement: https://leetcode.com/problems/maximum-product-of-splitted-binary-tree/ - Solution code: ## 💎 Additional Tips - Pay attention to how we avoid calculating subtree sums multiple times - Notice how careful handling of the modulo operation prevents integer overflow - Consider extending this approach to more complex tree partitioning problems ## 🔔 Call to Action If you found this solution helpful, please hit that subscribe button and turn on notifications to never miss an upload! Drop your questions or alternative approaches in the comments below. I respond to every comment! #codinginterviews #leetcode #csharp #binarytree