Welcome to my LeetCode Solutions repository! 🚀
This repository is my personal collection of solutions to problems I solve on LeetCode while continuously improving my understanding of:
- 🧩 Data Structures
- ⚡ Algorithms
- 🧠 Problem Solving
- ⏱️ Time & Space Complexity
- 💻 Competitive Programming
- 🎯 Technical Interview Preparation
I regularly add new solutions and revisit problems to find cleaner, more efficient, and more optimal approaches.
The goal isn't just to solve problems — it's to understand why the solution works.
My current objectives are:
- 🔥 Solve at least 2 problems every day
- 🧠 Strengthen algorithmic thinking
- 📚 Master core Data Structures & Algorithms
- ⚡ Learn and apply optimized approaches
- 🔄 Revisit difficult problems
- 💼 Prepare for technical interviews
- 📈 Maintain consistency through daily practice
Solutions in this repository are written in multiple programming languages:
| Language | Focus |
|---|---|
| 🟦 C | Fundamentals & problem solving |
| 🟪 C# | Object-oriented solutions |
| 🟨 C++ | DSA & competitive programming |
| ☕ Java | DSA & interview preparation |
| 🐍 Python | Concise & algorithmic solutions |
I'm continuously expanding the collection and may add more languages in the future.
Each problem is organized into its own directory using the LeetCode problem number and title.
LeetCode_Solutions/
│
├── 1.Two Sum/
├── 2.Add Two Numbers/
├── 21.Merge Two Sorted Lists/
├── 22.Generate Parentheses/
├── 34.Find First and Last Position of Element in Sorted Array/
├── 121.Best Time to Buy and Sell Stock/
├── 128.Longest Consecutive Sequence/
├── 141.Linked List Cycle/
├── 206.Reverse Linked List/
├── 239.Sliding Window Maximum/
├── 322.Coin Change/
├── 344.Reverse String/
├── ...
└── README.md
The repository currently contains solutions covering a wide range of LeetCode problems and has accumulated 179 commits of problem-solving work.
The problems in this repository span many important DSA topics.
- Arrays
- Strings
- Linked Lists
- Stacks
- Queues
- Hash Tables
- Trees
- Binary Trees
- Graphs
- Matrices
- Heaps
- Sets
- Binary Search
- Sliding Window
- Two Pointers
- Recursion
- Backtracking
- Dynamic Programming
- Greedy Algorithms
- Sorting
- Hashing
- Breadth-First Search
- Depth-First Search
- Bit Manipulation
- Prefix Sum
- Graph Traversal
For each problem, I try to follow a consistent process:
Understand
↓
Analyze Constraints
↓
Find Brute Force Approach
↓
Identify Optimization
↓
Implement
↓
Analyze Complexity
↓
Test Edge Cases
↓
Review & Improve
This helps me focus not only on getting an accepted solution, but also on developing a repeatable problem-solving methodology.
A typical problem directory follows the pattern:
121.Best Time to Buy and Sell Stock/
│
└── solution
The directory name makes it easy to identify the corresponding LeetCode problem and navigate directly to the solution.
This repository is continuously evolving.
- Build a consistent DSA practice routine
- Solve problems across multiple difficulty levels
- Practice multiple programming languages
- Organize solutions by problem number
- Expand coverage of advanced Dynamic Programming
- Expand Graph & Advanced Tree problems
- Add detailed complexity notes
- Add topic-based problem indexes
- Add automated progress statistics
🚀 Consistency over perfection.
LeetCode is not only about collecting accepted submissions.
The real objective is to develop the ability to:
Break down unfamiliar problems, identify patterns, choose appropriate data structures, and build efficient solutions.
This repository acts as both:
- 📚 A personal learning archive
- 💼 A technical portfolio
- 🧠 A DSA revision resource
- 📈 A record of continuous improvement
This is primarily a personal learning repository, but suggestions and improvements are welcome.
If you find:
- 🐛 A bug
- ⚡ A better optimization
- 🧠 A different approach
- 📝 A cleaner implementation
- 📚 A useful explanation
feel free to open an Issue or submit a Pull Request.
Different approaches are often a great way to learn something new.
If you find this repository useful, consider giving it a ⭐ on GitHub.
It helps motivate me to keep solving, learning, and improving.
If you're also working on DSA, competitive programming, or interview preparation, feel free to explore the repository and connect.
Keep learning. Keep solving. Keep improving. 🚀