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# Competitive Programming Handbook
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Welcome to the **Competitive Programming Handbook Repository** — a comprehensive, structured, and community-driven collection of **algorithms, data structures, problem-solving techniques, and detailed explanations** aimed at helping students and developers master competitive programming.
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This repository is designed to serve as a **single-source reference** for beginners as well as advanced programmers preparing for:
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- Competitive Coding Contests
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- Technical Placement Interviews
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- Olympiads
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- GATE
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- ICPC
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- Codeforces
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- LeetCode
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- AtCoder
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---
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## Purpose of This Repository
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The goal of this project is to:
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- Build a **complete handbook of competitive programming**
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- Provide **clear explanations with clean implementations**
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- Cover **all major algorithms and data structures**
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- Include **common CP patterns and optimization tricks**
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- Encourage **open-source collaboration**
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- Maintain **professional documentation and structure**
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This repository is meant to grow continuously with contributions from the community.
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---
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## Repository Structure
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### `/algos`
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This directory will contain:
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- All **algorithms**
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- Core **data structures**
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- Classical **problem solutions**
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- Optimized solutions
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- Step-by-step explanations
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Each algorithm must be placed in its **relevant category folder**, such as:
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- `dp`
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- `graphs`
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- `trees`
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- `math`
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- `strings`
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- `bit-manipulation`
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- `greedy`
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- `searching`
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- `range-queries`
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More directories will be added as the project scales.
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## What This Handbook Will Contain
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- Basic to Advanced Algorithms
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- Fundamental & Advanced Data Structures
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- Dynamic Programming
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- Graph Theory (BFS, DFS, Dijkstra, MST, etc.)
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- Number Theory
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- Greedy Techniques
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- Bit Manipulation
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- Binary Search
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- String Algorithms (KMP, Z, Trie, Hashing)
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- Geometry
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- Range Queries (Segment Tree, Fenwick Tree)
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- Advanced Topics (HLD, Mo’s Algorithm, etc.)
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Each topic will include:
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- Algorithm explanation
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- Time & Space Complexity
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- Clean, readable implementation
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- Sample test cases
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- Optimization notes
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## How to Participate & Contribute
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Contributions are **open to everyone**.
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### Steps to Contribute
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1. **Fork this repository**
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2. **Create a new branch with your name**
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git checkout -b your-name
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3. Add your files inside the `/algos` directory in the appropriate category
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4. Follow clean coding practices with proper documentation
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5. Commit and push your changes
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6. Create a **Pull Request (PR)**
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All pull requests will be reviewed before merging.
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---
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## Contribution Guidelines
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- Code must be **well-documented**
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- Follow **standard naming conventions**
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- Include **time & space complexity**
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- Avoid unnecessary boilerplate
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- One algorithm per file
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- No copied code without proper credit
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- Clearly explain tricky logic
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Low-effort or poorly documented submissions will not be merged.
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---
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## Community & Collaboration
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This project is built on:
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- Collaboration
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- Learning
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- Teaching
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- Knowledge Sharing
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- If you’re a **beginner**, this repository will guide you.
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- If you’re **experienced**, your contributions can help thousands.
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---
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## Future Plans
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- Full Algorithm Roadmap
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- Problem-wise CP Handbook
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- Interview Preparation Track
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- GATE-Level Problem Sets
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- Contest-wise Practice Banks
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- PDF Version of the Handbook
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- Language-wise Implementations (C++, Java, Python, Rust)
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---
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## Support the Project
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If this repository helps you:
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- Give it a ⭐ on GitHub
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- Share it with your friends
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- Contribute regularly
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Your support helps the project grow.
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## Contact & Maintainers
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For:
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- Bug reports
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- Suggestions
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- Feature requests
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- New topic proposals
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Please open an **Issue** or submit a **Pull Request**.
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---
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### Let’s build the **ultimate open-source Competitive Programming Handbook** together.

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