grokking-tree-coding-patterns-for-interviews

Grokking Tree Coding Patterns for Interviews

Master essential tree coding patterns to excel in technical interviews and enhance your problem-solving skills.

Level:

Beginner

Study Time:

10h

Lessons:

110

Playgrounds :

122

4.6

(1696 ratings)

6771 learners

Course Overview

This course is designed to give you the edge you need for tackling challenging tree coding questions that often come up in top-tier technical interviews. By mastering the key coding patterns we’ve covered, you'll be able to approach binary tree questions with confidence and clarity. Each pattern is backed by real coding questions, ensuring you not only understand the theory but also see it in action.

Don’t miss this opportunity to boost your problem-solving skills. Whether you’re aiming for top tech companies or just looking to strengthen your coding knowledge, this course is your fast track to success. Jump into the lessons, follow the examples, and practice each pattern so you’re fully prepared to solve complex binary tree problems in interviews or competitive programming!

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Course Content

• 11 Chapters • 110 Lessons

Introduction

1 lesson

Course Overview

Basics of Tree

2 lessons

Introduction to Tree

Binary Search Tree (BST)

Level Order Traversal Pattern (easy)

15 lessons

Introduction to Level Order Traversal Pattern

Reverse Level Order Traversal (easy)

Solution: Reverse Level Order Traversal

Find Largest Value in Each Tree Row (medium)

Solution: Find Largest Value in Each Tree Row

Maximum Width of Binary Tree (medium)

Solution: Maximum Width of Binary Tree

Maximum Level Sum of a Binary Tree (medium)

Solution: Maximum Level Sum of a Binary Tree

Zigzag Traversal (medium)

Solution: Zigzag Traversal

Even Odd Tree (medium)

Solution: Even Odd Tree

N-ary Tree Level Order Traversal (hard)

Solution: N-ary Tree Level Order Traversal

Tree Depth Pattern (easy)

13 lessons

Introduction to Tree Depth Pattern

Maximum Depth (or Height) of Binary Tree (easy)

Solution: Maximum Depth (or Height) of Binary Tree

Minimum Depth of a Binary Tree (easy)

Solution: Minimum Depth of a Binary Tree

Balanced Binary Tree (easy)

Solution: Balanced Binary Tree

Tree Diameter (easy)

Solution: Tree Diameter

Maximum Depth of N-ary Tree (easy)

Solution: Maximum Depth of N-ary Tree

Find maximum depth of subtree (medium)

Solution: Find maximum depth of subtree

Tree Breadth First Search (BFS) Pattern (easy)

11 lessons

Introduction to Tree Breadth First Search Pattern

Sum of Nodes with Even-Valued Grandparent (medium)

Solution: Sum of Nodes with Even-Valued Grandparent

All Nodes Distance K in Binary Tree (medium)

Solution: All Nodes Distance K in Binary Tree

Level Order Successor (easy)

Solution: Level Order Successor

Connect Level Order Siblings (medium)

Solution: Connect Level Order Siblings

Connect All Level Order Siblings (medium)

Connect All Level Order Siblings

Tree Depth First Search (DFS) Pattern (medium)

11 lessons

Introduction to Tree Depth First Search Pattern

Binary Tree Path Sum (easy)

Solution: Binary Tree Path Sum

Count Good Nodes in Binary Tree (medium)

Solution: Count Good Nodes in Binary Tree

Path Sum III (medium)

Solution: Path Sum III

Validate Binary Search Tree (medium)

Solution: Validate Binary Search Tree

Maximum Difference Between Node and Ancestor (medium)

Solution: Maximum Difference Between Node and Ancestor

Root to Leaf Path Pattern (medium)

19 lessons

Introduction to Root to Leaf Path Pattern

Binary Tree Paths (easy)

Solution: Binary Tree Paths

Sum of Root To Leaf Binary Numbers (easy)

Solution: Sum of Root To Leaf Binary Numbers

Insufficient Nodes in Root to Leaf Paths (medium)

Solution: Insufficient Nodes in Root to Leaf Paths

Smallest String Starting From Leaf (medium)

Solution: Smallest String Starting From Leaf

Pseudo-Palindromic Paths in a Binary Tree (medium)

Solution: Pseudo-Palindromic Paths in a Binary Tree

All Paths for a Sum (medium)

Solution: All Paths for a Sum

Sum of Path Numbers (medium)

Solution: Sum of Path Numbers

Path With Given Sequence (medium)

Solution: Path With Given Sequence

Count Paths for a Sum (medium)

Solution: Count Paths for a Sum

Leaf Processing Pattern (medium)

11 lessons

Introduction to Leaf Processing Pattern

Sum of Left Leaves (easy)

Solution: Sum of Left Leaves

Leaf-Similar Trees (easy)

Solution: Leaf-Similar Trees

Check if all leaves are at same level (medium)

Solution: Check if all leaves are at same level

Delete Leaves With a Given Value (medium)

Solution: Delete Leaves With a Given Value

Deepest Leaves Sum (medium)

Solution: Deepest Leaves Sum

Tree View Pattern (medium)

9 lessons

Introduction to Tree View Pattern

Right View of a Binary Tree (medium)

Solution: Right View of a Binary Tree

Top View Of the Binary Tree (medium)

Solution: Top View Of the Binary Tree

Bottom View Of the Binary Tree (medium)

Solution: Bottom View Of the Binary Tree

Boundary of Binary Tree (medium)

Solution: Boundary of Binary Tree

10.

Comparison of Two Trees Pattern (medium)

9 lessons

Introduction to Comparison of Two Trees Pattern

Symmetric Tree (easy)

Solution: Symmetric Tree

Mirror Image Trees (medium)

Solution: Mirror Image Trees

Subtree of Another Tree (easy)

Solution: Subtree of Another Tree

Isomorphic Trees (medium)

Solution: Isomorphic Trees

11.

Serialize and Deserialize Tree Pattern (hard)

9 lessons

Introduction to Serialize and Deserialize Tree Pattern

Serialize and Deserialize BST (medium)

Solution: Serialize and Deserialize BST

Verify Preorder Serialization of a Binary Tree (medium)

Solution: Verify Preorder Serialization of a Binary Tree

Create Binary Tree From Descriptions (medium)

Solution: Create Binary Tree From Descriptions

Serialize and Deserialize N-ary Tree (hard)

Solution: Serialize and Deserialize N-ary Tree

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