Intermediate Masterclass

DSA Interview Mastery

DSA Interview Mastery is a guided sequence designed to build your understanding step by step.

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73 Lessons

Production-Ready

Not just theory. Learn the patterns used at companies like Google, Meta, and Uber.

Interactive Progress

Save your progress, mark lessons as complete, and track your path to mastery.

Certification

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Course Curriculum

9. Recursion & Backtracking

6 Lessons

01Pattern Blueprint: The Backtracking Master Template

2 min read

02DSA Masterclass Module 9: Recursion & Backtracking

2 min read

03Backtracking Pattern in Java: Permutations and Combinations

13 min read

04Problem: Permutations

2 min read

05Problem: Combination Sum

2 min read

06Recursion & Backtracking: Curated Practice Problems

1 min read

6. Stack, Queue & Monotonic Stack

6 Lessons

01Pattern Blueprint: The Monotonic Stack Template

2 min read

02DSA Masterclass Module 6: Stack, Queue & Monotonic Stack

2 min read

03Problem: Valid Parentheses

2 min read

04Problem: Next Greater Element I

2 min read

05Monotonic Stack Pattern in Java: Efficiently Finding Next Greater/Smaller Elements

11 min read

06Stack & Queue: Curated Practice Problems

1 min read

4. Sliding Window Pattern

6 Lessons

01Pattern Blueprint: The Universal Sliding Window Template

2 min read

02DSA Masterclass Module 4: Sliding Window Pattern

2 min read

03Problem: Maximum Sum Subarray of Size K

1 min read

04Problem: Longest Substring with K Distinct Characters

2 min read

05Problem: Minimum Window Substring

2 min read

06Sliding Window Pattern: Curated Practice Problems

2 min read

3. Arrays & Two Pointers Pattern

1 Lessons

01Pattern Blueprint: The Two Pointers Master Template

2 min read

10. Dynamic Programming

5 Lessons

01Dynamic Programming in Java: Demystifying the 0/1 Knapsack Pattern

9 min read

02DSA Masterclass Module 10: Dynamic Programming

2 min read

03Problem: Longest Increasing Subsequence

2 min read

04Problem: Coin Change

2 min read

05Dynamic Programming: Curated Practice Problems

1 min read

12. Binary Search Patterns

5 Lessons

01DSA Masterclass Module 12: Binary Search Patterns

2 min read

02Binary Search Pattern in Java: Efficiently Searching Sorted Data

11 min read

03Problem: Search in Rotated Sorted Array

2 min read

04Problem: Koko Eating Bananas (Search on Answer)

2 min read

05Binary Search: Curated Practice Problems

1 min read

8. Graphs (BFS, DFS, TopoSort)

6 Lessons

01DSA Masterclass Module 8: Graphs (BFS, DFS, TopoSort)

1 min read

02Topological Sort in Java: Handling Dependencies with Kahn's Algorithm

10 min read

03Problem: Number of Islands

2 min read

04Problem: Course Schedule (Cycle Detection)

2 min read

05DSA Masterclass: Dijkstra’s vs. Bellman-Ford (Shortest Path Algorithms)

4 min read

06Graphs: Curated Practice Problems

1 min read

11. Greedy Algorithms

4 Lessons

01DSA Masterclass Module 11: Greedy Algorithms

4 min read

02Problem: Meeting Rooms (Interval Scheduling)

2 min read

03Problem: Jump Game

1 min read

04Greedy Algorithms: Curated Practice Problems

1 min read

13. Heaps & Priority Queue

3 Lessons

01DSA Masterclass Module 13: Heaps & Priority Queues

1 min read

02Problem: Kth Largest Element in an Array

2 min read

03Heaps: Curated Practice Problems

1 min read

15. Mock Interviews & Strategy

2 Lessons

01DSA Masterclass Module 15: Mock Interviews & Strategy

1 min read

02Lesson: The FAANG Interview Checklist

1 min read

5. Linked List Deep Dive

5 Lessons

01DSA Masterclass Module 5: Linked List Deep Dive

2 min read

02Problem: Linked List Cycle Detection

1 min read

03Problem: Reverse a Linked List

2 min read

04Fast & Slow Pointers in Java: Detecting Cycles and Finding Middle Elements

11 min read

05Linked Lists: Curated Practice Problems

1 min read

2. Problem Solving Mindset

2 Lessons

01DSA Masterclass Module 2: The Problem Solving Mindset

1 min read

02Lesson: How to Explain DSA Solutions

1 min read

1. Time & Space Complexity

4 Lessons

01DSA Masterclass Module 1: Time & Space Complexity

2 min read

02Problem: Analyze Nested Loops

1 min read

03Problem: Analyze Recursive Depth

1 min read

04DSA Complexity: Curated Practice Problems

1 min read

7. Trees (BFS, DFS, LCA)

5 Lessons

01DSA Masterclass Module 7: Trees (BFS, DFS, LCA)

2 min read

02Tree Traversals in Java: Mastering BFS and DFS for Coding Interviews

8 min read

03Problem: Maximum Depth of Binary Tree

1 min read

04Problem: Validate Binary Search Tree

2 min read

05Trees: Curated Practice Problems

1 min read

14. Tries & Advanced Structures

3 Lessons

01DSA Masterclass Module 14: Tries & Advanced Structures

2 min read

02Trie (Prefix Tree) in Java: The Ultimate Data Structure for String Problems

8 min read

03Tries: Curated Practice Problems

1 min read

16. Bit Manipulation & Logic

1 Lessons

01DSA Masterclass: The Bitmasking & XOR Blueprint

3 min read

17. Company Playbooks

2 Lessons

01Company Playbook: The Google 15

2 min read

02Company Playbook: The Meta 15

2 min read

3. Arrays & Two Pointers

7 Lessons

01DSA Masterclass Module 3: Arrays & Two Pointers Pattern

3 min read

02Problem: Two Sum (Sorted Array)

2 min read

03Problem: Remove Duplicates from Sorted Array

2 min read

04Problem: 3Sum - Finding Unique Triplets

2 min read

05Problem: Container With Most Water

2 min read

06Arrays & Two Pointers: Curated Practice Problems

2 min read

07Merge Intervals Pattern in Java: Conquer Overlapping Subarrays Efficiently

8 min read

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