DSA CheatSheet (Beginner to Advanced)

What It Contains:

1. Complete DSA Roadmap from Beginner to Advanced
2. Time Complexity, Space Complexity & Big-O Explained Simply
3. Mathematics for DSA:
   1. Prime Numbers
   2. GCD & LCM
   3. Sieve Algorithm
   4. Fast Exponentiation
   5. Bit Manipulation
4. Arrays Mastery:
   1. Sliding Window
   2. Two Pointers
   3. Prefix Sum
   4. Kadane’s Algorithm
   5. Sorting Techniques
5. Strings & Pattern Matching:
   1. KMP Algorithm
   2. Rabin-Karp
   3. Z Algorithm
   4. Manacher’s Algorithm
6. Linked Lists, Stacks & Queues Complete Notes
7. Recursion & Backtracking:
   1. N-Queens
   2. Sudoku Solver
   3. Permutations & Combinations
8. Searching & Sorting Algorithms Explained Clearly
9. Hashing & HashMap Concepts with Collision Handling
10. Trees & BST:
    1. Traversals
    2. LCA
    3. AVL Tree
    4. Segment Tree
11. Graphs Complete Coverage:
    1. BFS & DFS
    2. Dijkstra
    3. Bellman-Ford
    4. Floyd-Warshall
    5. MST (Prim’s & Kruskal’s)
    6. Union Find (DSU)
12. Dynamic Programming:
    1. 0/1 Knapsack
    2. LCS & LIS
    3. DP on Grids, Trees & Strings
13. Heap / Priority Queue Concepts
14. Sliding Window & Two Pointer Patterns
15. Segment Tree & Fenwick Tree (BIT)
16. Advanced Algorithms:
    1. Tarjan’s Algorithm
    2. Convex Hull
    3. MO’s Algorithm
    4. Square Root Decomposition
17. Common Coding Patterns & Reusable Templates
18. Common Beginner Mistakes in DSA & How to Avoid Them

Why You Should Buy This?

1. Covers almost every important DSA topic asked in coding interviews
2. Perfect structured notes for placements, internships, and MAANG prep
3. Saves hundreds of hours of searching scattered YouTube videos and articles
4. Helps you revise complete DSA quickly before interviews and contests
5. Beginner-friendly explanations with interview-focused concepts
6. Includes both fundamentals and advanced problem-solving techniques
7. Great for LeetCode, Coding Rounds, OA Preparation & Competitive Programming
8. One complete resource to build strong DSA foundations from scratch

Best For:

1. Placement Preparation
2. MAANG / Product-Based Company Interviews
3. LeetCode & Competitive Programming
4. College Students & Freshers
5. Software Engineering Aspirants
6. Anyone learning DSA seriously from scratch