CPInput - Competitive Programming Input Generator

Automate input parsing for competitive programming problems

# CPInput - Smart Input Parser for Competitive Programming Convert problem statements into clean input parsing code instantly with AI-powered precision or fast regex templates.

🌟 Features

• Dual Parsing Engine: Choose between ultra-fast regex templates or high-accuracy Gemini AI
• Multi-language Support: Generate input code for Python, C++, Java, and more
• Privacy Focused: Works offline with regex; API calls go directly to Google
• Competitive Programming Optimized: Generates efficient parsing code
• Extensible: Easily add new regex patterns or customize AI prompts

🚀 Quick Start

Installation

git clone https://github.com/adnantabda/cpinput.git
cd cpinput
npm install
npm run build

Don't Forget to add Your own API KEY

Load the Extension

1. Open Chrome and navigate to chrome://extensions
2. Enable "Developer mode"
3. Click "Load unpacked" and select the dist folder

🛠️ Usage

Basic Usage

1. Navigate to any competitive programming problem
2. Click Generate Input code

📊 Performance Comparison

Feature	Regex Parser	Gemini AI
Accuracy	65% (common cases)	95%+ cases
Speed	Instant	1-10 seconds
Offline Support	✅ Yes	❌ Requires API
Best For	Standard inputs	Complex problems

🔧 Configuration

Extending Regex Templates

Add your own patterns to src/templates.js:

{
  regex: /contains (\d+) floats? (.*)/i,
  code: '$1_floats = list(map(float, input().split())) // $2'
}

Customizing AI Prompts

Modify the system instruction for different behaviors:

const response = await ai.models.generateContent({
  model: "gemini-2.0-flash",
  contents: `Convert this ${lines} to ${lang} code`,
  config: {
    systemInstruction: `You are an expert at generating input parsing code.
      Return only pure code without comments or explanations.
      Use efficient methods suitable for competitive programming.`,
    temperature: 0.1,
    topP: 0.95,
    maxOutputTokens: 512,
  },
});

📚 Examples

Standard Input

Problem Statement:

The first line contains integer T
Each of the next T lines contains two integers

Generated Python:

T = int(input())
for _ in range(T):
    a, b = map(int, input().split())

Matrix Input

Problem Statement:

First line contains R and C
Next R lines contain C space-separated integers

Generated Python:

R, C = map(int, input().split())
matrix = [list(map(int, input().split())) for _ in range(R)]

🤝 Contributing

We welcome contributions! Please see our Contribution Guidelines.

1. Fork the repository
2. Create your feature branch (git checkout -b feature/AmazingFeature)
3. Commit your changes (git commit -m 'Add some AmazingFeature')
4. Push to the branch (git push origin feature/AmazingFeature)
5. Open a Pull Request

📜 License

Distributed under the MIT License. See LICENSE for more information. https://github.com/adnantabda/cpinput