cruxrebels / interviewbit

A collection of Abhishek Agrawal's C++ solutions providing scalable, production-quality code to 200+ LeetCode-style problems on https://www.interviewbit.com, designed to enhance algorithmic skills through practical learning and mentorship.

🚀 InterviewBit Solutions Repository

Welcome to my InterviewBit Solutions repository! 🎉 This project started as a hands-on learning lab to bridge the gap between algorithm theory and real-world problem-solving using the absolutely fantastic language, C++. Over time, it has evolved into a trusted resource for 250+ engineers, for its production-quality code and annotated teaching style.

Whether you're preparing for coding interviews or looking to deepen your understanding of algorithms, this repository is here to help! 💡

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🌟 About the Project

This repository contains working solutions (✅ passing all test cases on the InterviewBit online judge) written in C++. In future, I’ll try adding Java solutions as well, as I’ve transitioned to using Java in my professional work. 🖥️

Key Highlights:

• Optimized Solutions: Each solution is crafted with a focus on time ⏱️ and space complexity 💾.
• Modern C++ Features: Solutions leverage C++11 features like list initialization, auto, and emplace_back.
• Multiple Approaches: Some problems include multiple solutions with detailed comments explaining the trade-offs.
• Mentorship-Driven: The code reflects professional C++ experience, with an emphasis on clarity and readability to foster learning. 🧑‍💻

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📝 Notes for Users

1. Standalone Execution: The solutions are designed for the InterviewBit platform and may not run directly in your local IDE. To execute them locally, you’ll need to write a main() function and provide appropriate inputs/test cases.
2. Multiple Solutions: If a file contains multiple approaches, they are separated by comments. Be cautious not to copy all solutions at once when submitting to the online judge.
3. Original Content: All code in this repository is written by me. If you find it helpful, please consider giving the repo a ⭐ to show your support!

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🤝 How to Contribute

Contributions are always welcome! Here’s how you can get involved:

1. Fork the Repository 🍴
2. Make Changes ✏️: Add, delete, or modify solutions.
3. Follow Standards 📚: Ensure your code follows the existing structure and includes the problem statement with a link to the InterviewBit problem.
   • Example: AddOneToNumber.cpp
4. Submit Proof 📸: Attach a screenshot showing that your solution was ACCEPTED by the InterviewBit online judge.
5. Create a Pull Request 🚢: Submit your changes for review.

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🛠️ When Should You Contribute?

You can contribute if your solution meets any of the following criteria:

• Better Time Complexity ⏳: Your solution is faster than the one already present.
• Better Space Complexity 💾: Your solution uses less memory.
• Conciseness ✂️: Your solution is equally efficient but more concise.
• Improved Readability 📖: Your solution is easier to understand, with clear comments explaining the logic.
• Enhanced Documentation 📝: You’ve added meaningful comments or explanations to an existing solution.

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💡 Why This Repository?

This project is more than just a collection of solutions — it's a learning resource designed to help engineers grow. By sharing my journey and insights, I hope to inspire others to write clean, efficient, and maintainable code. 🌱

If you find this repository helpful, don’t forget to star ⭐ it and share it with others who might benefit. Let’s grow together! 🙌

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Thank you for visiting, and happy coding! 😊
Feel free to reach out if you have any questions or suggestions. 💬

interviewbit's Issues

Failing test cases

The code will say true for cases like .1.1.1 and -..1

ReverseTheString.cpp . is failing for input string as "j" of size 1.

if ( A.length() == 1) {
result = A;
return result;
}
above code can be added.

failing for "+..34"

strstr program fails

it fails for:
A : "b" B : "baba"

getting interviewbit solutions

Hi, can you tell me how you downloaded your solutions from Interviewbit? Did you scrape the website or use any automated method to get your solutions?

Time Out

Hey according to your code nextRight(B) calling same node again which definitely gives wrong ans You should replace it with nextRight(B->next).