🧠 Problem Root Equals Sum of Children 🏷️ Tags Tree, binary tree 📊 Difficulty Easy ✅ Success Rate: 91.4%📥 Submissions: 4,698📈 Accepted: 4,294 ❤️ Reactions 👍 Likes: 56👎 Dislikes: 103 💡 Hints 🔁 Similar Questions Leetcode Link : Root Equal...
🧠 Problem You are given the root of a binary tree that consists of exactly 3 nodes: the root, its left child, and its right child. Return true if the value of the root is equal to the sum of the values of its two children, or false otherwise. 🏷️ T...
🚀 Introduction Binary Trees are one of the most fascinating and frequently asked data structures in technical interviews. Among them, LeetCode Problem 124: Binary Tree Maximum Path Sum is a beautiful combination of recursion, tree traversal, and opt...
🔸 Introduction Talk briefly about tree traversal problems and how vertical traversal adds a twist. Mention that this is a Hard-level problem and requires careful ordering based on multiple dimensions — horizontal level, depth, and node values. Pro...
When learning about data structures, one of the most fundamental and fun ones to explore is the Binary Tree. Trees are hierarchical data structures that allow us to represent data with relationships — think file directories, organization charts, or e...
Problem statement Given a binary tree, determine if it is height-balanced.(link) Example 1: Input: root = [3,9,20,null,null,15,7] Output: true Example 2: Input: root = [1,2,2,3,3,null,null,4,4] Output: false Example 3: Input: root = [] Output: tr...
To see the question, click here. Naive Approach The idea is to determine the tree's height and then, for each level from 1 to the tree's height, gather the nodes at that level and add them to the result list. // TC: O(nh) // SC: O(n) import java.uti...
class Solution { public boolean ans = true; public int checkHeightDiff(TreeNode node){ if(node == null) return 0; int leftht = checkHeightDiff(node.left); int rightht = checkHeightDiff(node.right); if(Math.a...
