CFviz is a powerful tool for competitive programmers that visualizes your Codeforces performance and provides AI-powered features to help you improve. Track your progress, analyze your strengths and weaknesses, and receive personalized recommendations for practice problems and contest preparation.

• Codeforces profile visualization and statistics
• Problem tag analysis and performance metrics
• User authentication and profile management

• Personalized Problem Recommendations - Get problem suggestions based on your specific strengths and weaknesses
• Performance Insights - AI analysis of your solving patterns and detailed breakdown by problem categories
• Contest Predictions - Forecast your potential performance in upcoming contests with preparation advice
• AI Coding Assistant - Get help with competitive programming concepts and code optimization
• Smart Caching - Efficient data retrieval even when Codeforces API is unavailable

• React 18
• TypeScript
• Tailwind CSS
• React Router
• Axios
• React Google Charts

• Cloudflare Workers
• Hono.js
• Prisma with PostgreSQL
• OpenAI API integration
• Cloudflare KV for caching

• Node.js (v16+)
• npm or yarn
• Cloudflare Workers account
• PostgreSQL database
• OpenAI API key

Create a .env file in the backend directory with:

DATABASE_URL=your_postgres_connection_string
DIRECT_URL=your_direct_postgres_connection_string
JWT_PASSWORD=your_jwt_secret
OPENAI_API_KEY=your_openai_api_key

cd backend
npm install
npx prisma db push
npm run dev

cd frontend
npm install
npm run dev

Navigate to the AI Features section and check the "Recommended Problems" tab to see personalized problem suggestions based on your weak areas.

The "Performance Insights" tab provides detailed analysis of your performance across different problem categories and tags.

View upcoming contests with personalized predictions about your potential performance and tailored preparation advice.

Use the assistant to:

1. Ask questions about competitive programming concepts, algorithms, and strategies
2. Analyze your solutions for optimization opportunities and complexity improvements

cd backend
npm run deploy

cd frontend
npm run build

Then deploy the dist directory to your hosting service of choice (Vercel, Netlify, etc.)

Contributions are welcome! Please feel free to submit a Pull Request.

This project is licensed under the MIT License.

• Codeforces for providing the API
• OpenAI for powering the AI features