DSA & Competitive Programming Journey

A comprehensive repository documenting my data structures, algorithms, and competitive programming learning journey.

👨‍💻 About Me

I'm passionate about problem-solving and continuously improving my algorithmic thinking through consistent practice across multiple competitive programming platforms.

🎯 Profiles

• LeetCode: sagar-lekhraj
• Codeforces: sagarlekhraj
• AtCoder: sagar_lekhraj

📚 Repository Structure

This repository contains my solutions and learning materials organized by topics and platforms:

├── LeetCode/
│   ├── Easy/
│   ├── Medium/
│   └── Hard/
├── Codeforces/
│   ├── Contests/
│   └── Practice/
├── AtCoder/
│   ├── Contests/
│   └── Practice/
├── Topics/
│   ├── Arrays/
│   ├── Linked Lists/
│   ├── Trees/
│   ├── Graphs/
│   ├── Dynamic Programming/
│   └── ...
└── Notes/

🚀 Current Focus

• Mastering fundamental data structures and algorithms
• Participating in regular contests on all three platforms
• Solving problems across different difficulty levels
• Building intuition for common problem patterns

📈 Progress Tracking

I actively track my progress through:

• Regular contest participation
• Daily problem-solving practice
• Topic-wise problem coverage
• Performance analysis and improvement

💡 Learning Resources

Resources I find helpful in my journey:

• Platform editorial solutions
• Community discussions
• Algorithm visualization tools
• Competitive programming handbooks

🎓 Topics Covered

• Array and String manipulation
• Linked Lists
• Stacks and Queues
• Trees and Binary Search Trees
• Graphs (DFS, BFS, shortest paths)
• Dynamic Programming
• Greedy Algorithms
• Backtracking
• Bit Manipulation
• Math and Number Theory
• Sorting and Searching

🏆 Goals

• Achieve higher ratings across all platforms
• Solve problems consistently across difficulty levels
• Develop strong problem-solving intuition
• Contribute to the competitive programming community

📝 Notes

Each solution includes:

• Problem statement or link
• Approach and intuition
• Time and space complexity analysis
• Code implementation
• Alternative solutions (when applicable)

🤝 Contributing

Feel free to:

• Suggest optimizations to existing solutions
• Share alternative approaches
• Point out bugs or improvements
• Discuss problem-solving strategies

📫 Connect

Let's connect and grow together in this competitive programming journey!

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