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DSA

10 topics · AI-enhanced lessons

Data Structures & Algorithms. The foundation of coding interviews and efficient software.

📚 Sources:GeeksforGeeks DSA·93%NeetCode·96%CP-Algorithms·97%
🟢 Beginner
2 topics
01

Arrays & Hashing

Two pointers, sliding window, prefix sum

02

Linked Lists

Singly, doubly, fast/slow pointers

🟡 Intermediate
6 topics
01

Stacks & Queues

Monotonic stack, BFS with queue

02

Trees

Binary trees, BST, DFS/BFS traversal

03

Heaps & Priority Queues

Min/max heap, heapify, k-th element

04

Graphs

Adjacency list, DFS, BFS, Dijkstra

05

Sorting Algorithms

Merge sort, quick sort, heap sort

06

Binary Search

Templates, search on answer, rotated arrays

🔴 Advanced
2 topics
01

Dynamic Programming

1D/2D DP, memoization, tabulation

02

Backtracking

N-queens, permutations, combinations

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📊 Progress

Beginner2 topics
Intermediate6 topics
Advanced2 topics

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