DSA Learning Lab

Hi everyone👋. I hope this repo helps you. This repo contains my DSA learnings—mostly LeetCode solution code with explanations. If you want more details on specific concepts, visit my blog where I write daily about DSA topics. Check it out here 👉 click here

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📚 Table of Contents

• DSA Learning Lab
  • 📚 Table of Contents
  • Arrays
    • Array Problems
  • Strings
    • String Problems
  • Math & Numbers
    • Math and Number Problems
  • Other Problems
    • Miscellaneous Problems
  • Resources
    • Learning Materials
  • 🤝 Contributing
  • ⭐ Show Your Support
  • 📫 Connect With Me
  • 📄 License

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Arrays

An array is a collection of elements of the same data type stored in contiguous memory locations. Read more Also you can watch my youtube video for further clarification: video explanation

Array Problems

1. Build Array from Permutation
2. Concatenation of Array
3. Running Sum of 1d Array
4. Range Sum Query - Immutable
5. Range Sum Query 2D - Immutable
6. Number of Good Pairs
7. Shuffle the Array
8. Check IF N and It's Double Exists
9. Search Insert Position

For a comprehensive list of array problems organized by difficulty and concepts, check out: Arrays LeetCode Problems List

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Strings

String Problems

1. 3. Longest Substring Without Repeating Characters - Medium
2. 125. Valid Palindrome - Easy
3. 242. Valid Anagram - Easy
4. 344. Reverse String - Easy
5. 387. First Unique Character in a String - Easy
6. 1112. Find Words That Can Be Formed by Characters - Easy

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Math & Numbers

Math and Number Problems

1. 53. Maximum Subarray - Easy
2. 152. Maximum Product Subarray - Medium
3. 202. Happy Number - Easy
4. 643. Maximum Average Subarray I - Easy

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Other Problems

Miscellaneous Problems

1. 1205. Defanging an IP Address - Easy
2. 1651. Shuffle String - Easy
3. 1797. Goal Parser Interpretation - Easy
4. 2219. Maximum Number of Words Found in Sentences - Easy
5. 383. Ransom Note - Easy

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Resources

Learning Materials

• My Daily Learnings - PDF resources for daily DSA learning
• Images - Visual aids and diagrams

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🤝 Contributing

Contributions are welcome! If you'd like to contribute:

1. Fork the repository
2. Create a feature branch (git checkout -b feature/NewSolution)
3. Commit your changes (git commit -m 'Add new solution')
4. Push to the branch (git push origin feature/NewSolution)
5. Open a Pull Request

Contribution Ideas:

• Add solutions in other programming languages
• Improve explanations or add diagrams
• Fix bugs or optimize existing solutions
• Add new problems and solutions

⭐ Show Your Support

If you find this repository helpful:

• Give it a ⭐️ star
• Share it with others learning DSA
• Follow for more updates

📫 Connect With Me

• 📝 Blog: kabileshwarankabil.github.io

📄 License

This project is open source and available under the MIT License.

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