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# Problem Solving Repository
Welcome to my **Problem Solving** repository! This repository is a collection of my solutions to various coding problems from popular platforms like LeetCode, Codeforces, UVa, AtCoder, and CSES. The primary focus of this repository is to document my journey in improving my **problem-solving skills** through consistent practice and learning.
## Repository Structure
The repository is organized into directories, each corresponding to a specific platform. Inside each directory, you'll find my solutions to problems, along with notes and explanations to help me (and hopefully others) understand the thought process behind each solution.
```
Problem-Solving/
│
├── LeetCode/
│ ├── Easy/
│ ├── Medium/
│ ├── Hard/
│ └── Notes.md
│
├── Codeforces/
│ ├── Div2/
│ ├── Div3/
│ ├── Div4/
│ └── Notes.md
│
├── CSES/
│ ├── Introductory/
│ ├── Sorting and Searching/
│ └── Notes.md
|
├── UVa
├── Spoj
├── AtCoder
│
└── General-Notes/
├── Data-Structures.md
├── Algorithms.md
├── Problem-Solving-Techniques.md
└── Tips-and-Tricks.md
```
## Platforms Covered
### **LeetCode**
- **Easy**: Solutions to beginner-friendly problems that focus on basic data structures and algorithms.
- **Medium**: More challenging problems that require a deeper understanding of algorithms and problem-solving techniques.
- **Hard**: Complex problems that often involve advanced algorithms, dynamic programming, or tricky optimizations.
- **Notes.md**: General notes on common patterns, tips, and tricks specific to LeetCode problems.
### **Codeforces**
- **Div2**: Solutions to problems from Codeforces Div2 contests, which are typically aimed at intermediate-level programmers.
- **Div3**: Solutions to problems from Div3 contests, which are generally easier and more accessible.
- **Educational**: Solutions to problems from educational rounds, which often focus on teaching specific concepts or techniques.
- **Notes.md**: Notes on competitive programming strategies, common pitfalls, and techniques used in Codeforces contests.
### **CSES (Code Submission Evaluation System)**
- **Introductory**: Solutions to introductory problems that cover basic data structures and algorithms.
- **Sorting and Searching**: Solutions to problems focused on sorting and searching algorithms.
- **Notes.md**: Notes on CSES problem-solving strategies, including common algorithms and data structures used.
### **General Notes**
- **Data-Structures.md**: Detailed notes on various data structures, including arrays, linked lists, trees, graphs, and more.
- **Algorithms.md**: Comprehensive notes on algorithms, including sorting, searching, dynamic programming, and graph algorithms.
- **Problem-Solving-Techniques.md**: A collection of problem-solving techniques, such as divide and conquer, greedy algorithms, and backtracking.
- **Tips-and-Tricks.md**: Useful tips and tricks for improving problem-solving efficiency, debugging, and optimizing code.
## Focus on Problem-Solving Skills
While this repository includes solutions to problems from competitive programming platforms, the primary focus is on **improving problem-solving skills**. The goal is not just to solve problems quickly or to compete, but to deeply understand the underlying concepts, patterns, and techniques that can be applied to a wide range of problems.
### Key Areas of Focus:
- **Understanding the Problem**: Breaking down problems into smaller, manageable parts.
- **Algorithmic Thinking**: Developing efficient algorithms to solve problems.
- **Data Structures**: Choosing the right data structures to optimize solutions.
- **Optimization**: Improving the time and space complexity of solutions.
- **Pattern Recognition**: Identifying common patterns and applying known techniques to new problems.
## How to Use This Repository
1. **Browse by Platform**: Navigate to the directory of the platform you're interested in (e.g., LeetCode, Codeforces) to find solutions and notes.
2. **Read the Notes**: Each platform directory contains a `Notes.md` file with insights, tips, and common patterns specific to that platform.
3. **Explore General Notes**: The `General-Notes/` directory contains broader notes on data structures, algorithms, and problem-solving techniques that are applicable across all platforms.
4. **Contribute**: If you have suggestions, improvements, or additional solutions, feel free to open a pull request or issue.
## Why Problem Solving?
Problem-solving is a fundamental skill in software engineering and computer science. It's not just about writing code; it's about thinking critically, breaking down complex problems, and coming up with efficient solutions. This repository is a reflection of my journey in honing these skills, and I hope it can serve as a resource for others on a similar path.
Happy coding, and may your problem-solving skills continue to grow!
---
**Note**: This repository is a work in progress, and I will continue to add more solutions, notes, and resources over time. Stay tuned for updates!
---
**Profiles**
- [Leet code](https://leetcode.com/u/Aboulfotouh/)
- [Codeforces](https://codeforces.com/profile/Abulfotouh)
- [Vjudge](https://vjudge.net/user/Aboelfotouh7D1)
**Connect with me**:
- [LinkedIn](https://www.linkedin.com/in/abdelrahman-aboulfotouh)
---
**License**: This repository is licensed under the MIT License. See the [LICENSE](LICENSE) file for more details.