Average of Levels in Binary Tree | Data Structures in Javascript | DAS Interview | leetcode 150
Average of Levels in Binary Tree | Data Structures in Javascript | DAS Interview | leetcode 150
Description
Given the root of a binary tree, return the average value of the nodes on each level in the form of an array. Answers within 10-5 of the actual answer will be accepted.
Example 1
Input: root = [3,9,20,null,null,15,7]
Output: [3.00000,14.50000,11.00000]
Explanation: The average value of nodes on level 0 is 3, on level 1 is 14.5, and on level 2 is 11.
Hence return [3, 14.5, 11].
Example 2:
Input: root = [3,9,20,15,7]
Output: [3.00000,14.50000,11.00000]
Key Highlights:
✅ Clear problem breakdown
✅ Efficient approaches explained (including optimization)
✅ Code walkthrough with step-by-step explanation
✅ Example test cases demonstrated
Whether preparing for coding interviews or brushing up on your skills, this video is perfect for you! Let's solve this problem and boost your programming confidence. 🚀
Topics Covered:
Brute force approach: solution
Optimized approach: solution
Handling edge cases and testing
Writing clean, interview-ready code
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