Talentd Logo
Talentd#1 Freshers Platform
Jobs
Learning
Career Tools
Talentd Logo
Talentd#1 Freshers Platform
Jobs
Learning
Career Tools
Talentd Logo
Talentd#1 Freshers Platform
Jobs
Learning
Career Tools
Talentd Logo
Talentd#1 Freshers Platform
Jobs
Learning
Career Tools
Talentd Logo
Talentd#1 Freshers Platform
Home
Talentd Logo
Talentd

Your trusted platform to ace any job interviews, craft the perfect resumes, and land your dream jobs.

P
Featured on
Product Hunt
▲455
All services are online

Products

  • Resume Review
  • Company Prep Pack
  • DSA Corner
  • Jobs
  • Internships
  • Fresher Jobs
  • Roadmaps
  • Tax Calculator

Resources

  • Articles
  • DRDO Internships

Support

  • Contact Us

DSA & Interview Prep

  • DSA Questions
  • DSA Sheets
  • Company Questions
  • Topics

Company

  • Companies Hiring
  • About
  • Contact
  • Advertisement

Legal

  • Privacy Policy
  • Terms & Conditions
  • Refund Policy
  • Delivery Policy

Popular Skills

Browse All Skills →

Popular Tags

Browse All Tags →

© 2025 Talentd.in - All rights reserved

Privacy PolicyTerms & Conditions
Talentd Logo
Talentd#1 Freshers Platform
Jobs
Learning
Career Tools
Talentd Logo
Talentd#1 Freshers Platform
Jobs
Learning
Career Tools
Talentd Logo
Talentd#1 Freshers Platform
Jobs
Learning
Career Tools
Talentd Logo
Talentd#1 Freshers Platform
Jobs
Learning
Career Tools
Talentd Logo
Talentd#1 Freshers Platform
DSA Corner
DashboardQuestionsTopicsCompaniesSheets

Talentd Logo
Talentd

Your trusted platform to ace any job interviews, craft the perfect resumes, and land your dream jobs.

P
Featured on
Product Hunt
▲455
All services are online

Products

  • Resume Review
  • Company Prep Pack
  • DSA Corner
  • Jobs
  • Internships
  • Fresher Jobs
  • Roadmaps
  • Tax Calculator

Resources

  • Articles
  • DRDO Internships

Support

  • Contact Us

DSA & Interview Prep

  • DSA Questions
  • DSA Sheets
  • Company Questions
  • Topics

Company

  • Companies Hiring
  • About
  • Contact
  • Advertisement

Legal

  • Privacy Policy
  • Terms & Conditions
  • Refund Policy
  • Delivery Policy

Popular Skills

Browse All Skills →

Popular Tags

Browse All Tags →

© 2025 Talentd.in - All rights reserved

Privacy PolicyTerms & Conditions
Talentd Logo
Talentd#1 Freshers Platform
Jobs
Learning
Career Tools
Talentd Logo
Talentd#1 Freshers Platform
Jobs
Learning
Career Tools
Talentd Logo
Talentd#1 Freshers Platform
Jobs
Learning
Career Tools
Talentd Logo
Talentd#1 Freshers Platform
Jobs
Learning
Career Tools
Talentd Logo
Talentd#1 Freshers Platform
DSA Corner
DashboardQuestionsTopicsCompaniesSheets
Talentd Logo
Talentd

Your trusted platform to ace any job interviews, craft the perfect resumes, and land your dream jobs.

P
Featured on
Product Hunt
▲455
All services are online

Products

  • Resume Review
  • Company Prep Pack
  • DSA Corner
  • Jobs
  • Internships
  • Fresher Jobs
  • Roadmaps
  • Tax Calculator

Resources

  • Articles
  • DRDO Internships

Support

  • Contact Us

DSA & Interview Prep

  • DSA Questions
  • DSA Sheets
  • Company Questions
  • Topics

Company

  • Companies Hiring
  • About
  • Contact
  • Advertisement

Legal

  • Privacy Policy
  • Terms & Conditions
  • Refund Policy
  • Delivery Policy

Popular Skills

Browse All Skills →

Popular Tags

Browse All Tags →

© 2025 Talentd.in - All rights reserved

Privacy PolicyTerms & Conditions
Talentd Logo
Talentd#1 Freshers Platform
Jobs
Learning
Career Tools
Talentd Logo
Talentd#1 Freshers Platform
Jobs
Learning
Career Tools
Talentd Logo
Talentd#1 Freshers Platform
Jobs
Learning
Career Tools
Talentd Logo
Talentd#1 Freshers Platform
Jobs
Learning
Career Tools
Talentd Logo
Talentd#1 Freshers Platform
DSA Corner
DashboardQuestionsTopicsCompaniesSheets
Talentd Logo
Talentd

Your trusted platform to ace any job interviews, craft the perfect resumes, and land your dream jobs.

P
Featured on
Product Hunt
▲455
All services are online

Products

  • Resume Review
  • Company Prep Pack
  • DSA Corner
  • Jobs
  • Internships
  • Fresher Jobs
  • Roadmaps
  • Tax Calculator

Resources

  • Articles
  • DRDO Internships

Support

  • Contact Us

DSA & Interview Prep

  • DSA Questions
  • DSA Sheets
  • Company Questions
  • Topics

Company

  • Companies Hiring
  • About
  • Contact
  • Advertisement

Legal

  • Privacy Policy
  • Terms & Conditions
  • Refund Policy
  • Delivery Policy

Popular Skills

Browse All Skills →

Popular Tags

Browse All Tags →

© 2025 Talentd.in - All rights reserved

Privacy PolicyTerms & Conditions
Talentd Logo
Talentd#1 Freshers Platform
Jobs
Learning
Career Tools
Talentd Logo
Talentd#1 Freshers Platform
Jobs
Learning
Career Tools
Talentd Logo
Talentd#1 Freshers Platform
Jobs
Learning
Career Tools
Talentd Logo
Talentd#1 Freshers Platform
Jobs
Learning
Career Tools
Talentd Logo
Talentd#1 Freshers Platform
DSA Corner
DashboardQuestionsTopicsCompaniesSheets
Back to Problems

1120. Maximum Average Subtree

Medium66.7% AcceptancePremium
TreeDepth-First SearchBinary Tree
ProblemHints (3)SolutionsVideosCompanies (2)Notes

Problem Statement

Premium Problem

Talentd Logo
Talentd

Your trusted platform to ace any job interviews, craft the perfect resumes, and land your dream jobs.

P
Featured on
Product Hunt
▲455
All services are online

Products

  • Resume Review
  • Company Prep Pack
  • DSA Corner
  • Jobs
  • Internships
  • Fresher Jobs
  • Roadmaps
  • Tax Calculator

Resources

  • Articles
  • DRDO Internships

Support

  • Contact Us

DSA & Interview Prep

  • DSA Questions
  • DSA Sheets
  • Company Questions
  • Topics

Company

  • Companies Hiring
  • About
  • Contact
  • Advertisement

Legal

  • Privacy Policy
  • Terms & Conditions
  • Refund Policy
  • Delivery Policy

Popular Skills

Browse All Skills →

Popular Tags

Browse All Tags →

© 2025 Talentd.in - All rights reserved

Privacy PolicyTerms & Conditions
Asked by:
F
Facebook
A
Amazon

This is a premium problem. We're working on making it available for free soon.

Explore Free Problems

Problem Hints

Use these hints if you're stuck. Try solving on your own first.

1
Hint 1

Can you find the sum of values and the number of nodes for every sub-tree ?

2
Hint 2

Can you find the sum of values and the number of nodes for a sub-tree given the sum of values and the number of nodes of it's left and right sub-trees ?

3
Hint 3

Use depth first search to recursively find the solution for the children of a node then use their solutions to compute the current node's solution.

Ready to see the solutions?View Solutions

Solutions

Premium Content

Solutions for this premium problem will be available for free soon.

Browse Free Problems

Video Solutions

Watch expert explanations and walkthroughs

LeetCode 637. Average of Levels in Binary Tree (Algorithm Explained)

Nick White
6:2514,179 views

Asked By Companies

2 companies
F
Facebook
A
Amazon

Prepare for Interviews

Practice problems asked by these companies to ace your technical interviews.

Explore More Problems

Notes

Personal Notes

Jot down your thoughts, approach, and key learnings

0 characters

Similar Problems

Binary Tree Inorder TraversalEasy
Validate Binary Search TreeMedium
Recover Binary Search TreeMedium
Same TreeEasy
More similar problems

Related Topics

TreeDepth-First SearchBinary Tree

Problem Stats

Acceptance Rate66.7%
DifficultyMedium
Companies2

Practice on LeetCode

Solve with full IDE support and test cases

Solve Now

Frequently Asked Questions

Is Maximum Average Subtree asked in FAANG interviews?

Yes, tree-based DFS problems like Maximum Average Subtree are common in technical interviews at major tech companies. They test understanding of tree traversal, recursion, and aggregating information across subtrees.

What data structure is best for Maximum Average Subtree?

A binary tree combined with recursion (DFS) is the most suitable structure for this problem. The recursion stack helps aggregate subtree sums and node counts while traversing the tree in postorder.

What is the optimal approach for Maximum Average Subtree?

The optimal approach uses a DFS postorder traversal to compute the sum and size of every subtree. With these values, the average can be calculated at each node and compared with a global maximum. This ensures each node is processed once, making the algorithm efficient.

Why is postorder traversal used in Maximum Average Subtree?

Postorder traversal processes the left and right children before the parent node. This allows the algorithm to know the total sum and size of both subtrees before computing the average for the current node.