💻 Data Structures and Algorithms Repository

Welcome to my curated collection of Data Structures and Algorithms problems and implementations using C++. This repository is designed to help me (and anyone else!) learn, revise, and master key DSA concepts topic by topic.

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🧰 Tech Stack & Resources

Tool / Platform	Icon
C++
Visual Studio Code
GeeksforGeeks
LeetCode
GitHub
Cursor

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📂 Folder Structure & Topics

Click on any topic below to view the problems and implementations within:

Topic	Folder Link	Status	Key Features
🔁 Sliding Window	0. SlidingWindow	✅ Complete	Fixed/Variable window, Two pointers
🔢 Arrays	1. Array	✅ Complete	Palindrome, Reverse, Rotate, Search
📦 Vectors	2. Vector	✅ Complete	Basics, Merge, Palindrome, Reverse
✂️ Strings	3. String	✅ Complete	Operations, Palindrome, Substring
🔢 Matrices	4. Matrix	✅ Complete	Matrix operations and manipulations
🔍 Searching	5. Searching	✅ Complete	Linear, Binary search algorithms
🧮 Sorting	6. Sorting	✅ Complete	Comparison & Non-comparison sorts
🧃 Hashing	7. Hashing	✅ Complete	Collision resolution techniques
📦 Containers	8. Containers	✅ Complete	STL containers and operations
🔗 Linked List	9. LinkedList	✅ Complete	Singly, Doubly, Circular lists
📚 Stack	10. Stack	✅ Complete	Array, LL, STL implementations
📥 Queue	11. Queue	✅ Complete	Simple, Circular, Priority queues
⏪ Deque	12. Deque	✅ Complete

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🚀 Key Features of Implementations

📝 Comprehensive Documentation

• Detailed comments explaining each algorithm step
• Time and Space complexity analysis
• Example outputs and expected results
• Step-by-step demonstrations

🎮 Interactive User Experience

• User input validation and error handling
• Multiple approach comparisons
• Performance timing measurements
• Visual representations where applicable

🧪 Educational Content

• Algorithm explanations and derivations
• Advantages and disadvantages analysis
• Real-world applications
• Optimization techniques

🔧 Code Quality

• Clean, readable C++ code
• Proper error handling
• Input validation
• Modular design with separate functions

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📄 Reference Materials

• CPP.md – essential reference links for learning C++ programming language
• ReferenceLinks.md – curated links to helpful articles, videos, and cheat sheets
• STL.cpp – Common STL operations in C++ used across the repo

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📈 Progress & Purpose

This repository is built for:

• 📚 Interview prep - Comprehensive coverage of DSA topics
• 💡 Competitive programming - Optimized algorithms and techniques
• 🧪 Concept clarity & practice - Step-by-step explanations
• 👨‍💻 Academic reference - Clean implementations for learning

🎯 Learning Path

1. Basic Data Structures (Arrays, Strings, Vectors)
2. Linear Data Structures (Linked Lists, Stacks, Queues)
3. Non-Linear Structures (Trees, Graphs, Tries)
4. Algorithms (Searching, Sorting, Hashing)
5. Advanced Techniques (Recursion, Backtracking, DP, Greedy, Bit Manipulation)
6. C++ Language Reference (CPP.md)

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🏆 Repository Highlights

• 500+ lines of well-documented C++ code
• 21+ major DSA topics covered
• Multiple implementation approaches per algorithm
• Real-world problem examples
• Performance analysis and optimization tips

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🌟 If you find this helpful, feel free to fork, star, or contribute!

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🙋‍♂️ Author

Siddharth (a.k.a 7even)

A final-year IT student passionate about clean code, real-world applications, and tech that makes life smarter.

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📬 Contact

• 📧 sidxohal9049@gmail.com
• 🌐 GitHub
• 💼 LinkedIn

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Crafted with focus, love, and a hint of recursion... 🌀