DSA Problems Repository

Welcome to my DSA Problems repository! This repository contains well-structured solutions to a wide range of Data Structures and Algorithms (DSA) problems from platforms such as LeetCode, Codeforces, HackerRank, and more.

🌟 Key Highlights:

• Languages Used:
  • C++ (Primary Language)
  • Python
  • Java
• Organized Structure:
  • Categorized by platforms, topics, and popular DSA sheets like:
    • NeetCode
    • Arsh Goyal DSA Sheet
    • Striver's SDE Sheet
    • Love Babbar DSA Sheet
• Topics Covered:
  • Dynamic Programming
  • Graphs (BFS, DFS, Shortest Path Algorithms)
  • Sorting Algorithms (QuickSort, MergeSort, etc.)
  • Greedy Algorithms
  • Binary Search & Variants
  • Linked Lists, Stacks, Queues, and Trees
  • And much more!

🎯 Purpose:

This repository serves as:

1. A personal tracker of my problem-solving journey and progress in DSA.
2. A resource for others, with efficient solutions and clear code for preparing for coding interviews.
3. Preparation material for competitive programming contests and placement exams.

✨ Features:

• Detailed Explanations: Each problem includes a concise explanation of the approach and key observations.
• Time and Space Complexities: Mentioned for every solution.
• Optimized Code: Focus on readability and efficiency.
• Practice Links: Direct links to problems for quick access.
• Interview-Ready Solutions: Solutions tailored to real-world coding interview scenarios.

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About Me:

Hi there! 👋 I’m Harsh Agrawal, a final-year Computer Science and Engineering student passionate about tackling challenging algorithmic problems and building impactful software solutions.

• DSA Expertise: Solved 600+ problems on LeetCode with a 3-star rating (LeetCode ID: h_agrawal6754) and a 1700+ rating.
• Full-Stack Developer: Experienced in creating dynamic web applications using React, Angular, .NET, and the MERN stack.
• Hackathon Enthusiast: Love brainstorming innovative ideas and competing in hackathons.
• Mentor and Collaborator: Active member of my college coding club, organizing DSA events and mentoring peers in problem-solving and full-stack projects.

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📂 Repository Structure:

DSA-Problems/
│
├── LeetCode/
│   ├── Arrays/
│   │   ├── Problem_1_Two_Sum.cpp
│   │   ├── Problem_26_Remove_Duplicates.cpp
│   │   └── ...
│   ├── Strings/
│   ├── Dynamic_Programming/
│   └── ...
│
├── Codeforces/
│   ├── Contest_Problems/
│   └── Practice_Problems/
│
├── HackerRank/
│   └── Data_Structures/
│
├── Sheets/
│   ├── NeetCode/
│   ├── ArshGoyal/
│   └── Strivers_SDE_Sheet/
│
└── README.md

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🤝 Contributing:

I welcome contributions to enhance this repository!

1. Fork the repo and create a branch for your feature or fix.
2. Submit a pull request with details about your changes.

⭐ Stay Connected:

• LinkedIn: Harsh Agrawal
• GitHub: h-agrawal6754
• LeetCode: h_agrawal6754

Feel free to explore, star ⭐, or contribute to this repository. Let’s grow together as problem solvers and developers! 🚀