DATA-STRUCTURE-ALGORITHMS

Contains all the possible DSA codes I made over time, feel free to use it, will be updating it frequently.

Youtube channels I prefer to study

🆒Best for indepth understanding and code explanation🆒

Raj_Vikramaditya_aka_Striver

Nothing on YouTube really beats the indepth explanations he gives, take my word mate🧙‍♂️

Best for theoretical understanding of DSA

Helps ace those theoretical questions in college exams😉

1. Jennys_lectures

2. Gate_smashers

3. Abdul_Bari

For guideline or roadmaps

1. Parikh_Jain

Best Place(s) to practice and grind yourself

1. LeetCode

2. Code360 by Naukri(previously it was under CodingNinjas)

Do try competitve programming😀

2. Codechef

3. Codeforces

4. Atcoder

To deep dive into Competitive Programming

1. USACO

2. CSES

When the Mathematics Crawlers bite you!

1. ProjectEuler

2. Library Checker - collection of good problems from GMs

Solving problems of bioinformatics through coding

1. Rosalind

Online judges to practice even more problems on different judging platforms

1. SPOJ

2. OJ-UZ

3. BOJ

4. A2OJ problem links 😔actual site retired in 2019, read more here

Coding can be done in any programming language😁

The below resources will help you out in hard times I suppose :-

1. Computer Programming resources

2. cpp best practices

3. JSBooks

4. free algorithm books

5. Free algorithm books list in different programming language

6. Free Programming books😲

7. influential cs books

⭐⭐⭐DSA sheets for Interviews

1. Striver's SDE sheet

2. Arsh Goyal's DSA 60 day sheet

3. Parikh Jain DSA

Open to modifications and improvement🧬.

📊 DSA Progress Tracker

Tracking my progress across core DSA topics.
✅ = Completed | 🚧 = In Progress

Topic	Status
Core Foundations
Arrays	✅
Strings
Recursion & Backtracking	✅
Bit Manipulation	🚧
Linear Data Structures
Linked List (Singly, Doubly, Circular)	✅
Stack	🚧
Queue & Deque	🚧
Non-Linear Data Structures
Trees (Binary Tree, BST)	✅
Binary Heap / Priority Queue	🚧
Graphs (DFS, BFS, Shortest Paths, MST)	✅
Tries
Algorithms
Searching (Binary Search & Variants)	✅
Sorting (Merge, Quick, Heap, etc.)	✅
Divide and Conquer	🚧
Greedy Algorithms
Dynamic Programming (1D, 2D, Knapsack, LIS, etc.)	✅
Advanced Topics
Segment Trees & Fenwick Tree (BIT)
Disjoint Set Union (Union-Find)	✅
String Algorithms (KMP, Z-Algorithm, Rabin-Karp)
Graph Advanced (Flow, Bridges, Articulation Points, Kosaraju and Tarjan)	✅