Learn DSA

Master data structure patterns, algorithm intuition, and pattern recognition to crack any coding interview in Java, Python, or C++ — 45 topics across 12 chapters.

Start Learning View Modules

45

Topics

12

Chapters

30h

Est. Time

Progress0/45 (0%)

All Modules

Click any topic to start learning

1

Foundations

5 topics

0% done

1Big O Notation 2Time Complexity 3Space Complexity 4Recursion 5Problem Solving Framework

2

Arrays

6 topics

0% done

1Array Fundamentals 2Two Pointers 3Sliding Window 4Prefix Sum 5Kadane's Algorithm 6Cyclic Sort

3

Linked Lists

4 topics

0% done

1Linked List Fundamentals 2Fast & Slow Pointers (Floyd's)3Reverse Linked List 4Merge Lists & K-way Merge

4

Stacks & Queues

3 topics

0% done

1Stack Fundamentals 2Monotonic Stack 3Queue & Deque

5

Hash Maps & Sets

3 topics

0% done

1HashMap Fundamentals 2Two Sum & Complement Pattern 3Anagram & Grouping Pattern

6

Trees

4 topics

0% done

1Binary Tree Fundamentals 2Tree DFS (Depth-First Search)3Tree BFS (Level Order)4Binary Search Tree

7

Heaps & Priority Queues

3 topics

0% done

1Heap Fundamentals 2Top K Elements Pattern 3Running Median (Two Heaps)

8

Graphs

6 topics

0% done

1Graph Fundamentals 2Graph DFS & Connected Components 3Graph BFS & Shortest Path 4Topological Sort 5Union Find (Disjoint Set)6Dijkstra's Algorithm

9

Binary Search

2 topics

0% done

1Binary Search Fundamentals 2Binary Search on Answer

10

Dynamic Programming

4 topics

0% done

1DP Fundamentals 21D DP — Fibonacci & Climbing Stairs 32D DP — Grid & Substring Problems 40/1 Knapsack & Unbounded Knapsack

11

Backtracking

2 topics

0% done

1Backtracking Fundamentals 2Subsets & Permutations

12

Pattern Recognition Center

3 topics

0% done

1Keyword → Pattern Decision Tree 2Sliding Window vs Two Pointers vs Prefix Sum 3Interview Shortcuts & Tricks