Remove Leaf Nodes in a Binary Tree | Recursive DFS Approach | LeetCode Explained скачать в хорошем качестве

Remove Leaf Nodes in a Binary Tree | Recursive DFS Approach | LeetCode Explained

In this video, we’ll solve the Remove Leaf Nodes problem step by step using a recursive DFS strategy. You’ll learn how to identify leaf nodes, remove them correctly, and handle cascading deletions when parent nodes become leaves after removal. We’ll walk through the core intuition, edge cases, and a clean implementation that’s easy to remember for coding interviews. This problem is a great example of post-order traversal and helps strengthen your understanding of tree recursion. What you’ll learn: How to detect and remove leaf nodes in a binary tree Why post-order traversal is crucial for this problem Handling repeated leaf removal safely Time & space complexity analysis Common mistakes to avoid in interviews Perfect for LeetCode practice, FAANG prep, and mastering Binary Tree recursion 🌳💻 If you want a slightly more beginner-friendly or a super-concise version, tell me your audience and I’ll tweak it 🔥