Master Data Structures & Algorithms — From Typing Code to Topping Contests

Welcome to CodeDrill, the ultimate military-themed DSA platform built to help you become an elite code commando. Whether you're a raw recruit or a battle-hardened programmer, CodeDrill is your mission control for mastering Data Structures, Algorithms, and competitive programming.

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“Code not just to solve problems, but to build discipline. CodeDrill is your training ground.”

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🚀 Features

• 🔥 Daily Drills

  • Practice fresh, curated problems every day.
  • Problem timers to simulate real contest pressure.

• 🧠 AI Hints System

  • Get smart hints powered by AI to break through logic blocks.
  • Works in real-time with context from your current problem.

• 📊 Submission Heatmap

  • GitHub-style heatmap calendar to visualize your submission streak.
  • Helps you track consistency and identify weak zones.

• 🧮 Problem Sets & Special Sheets

  • Sheets for CP, Interviews, Codeforces ladders, etc.
  • Organized by topic and difficulty.

• 🎖️ Military Theme

  • Motivational design: Enlist as a code recruit and rise through the ranks.
  • Clean UI with rank-based progress visualization.

• 🕒 Live Timer on Problems

  • Adds urgency like a real coding contest.
  • Track how long you took for each submission.

• 💬 AI Chatbot Assistant

  • Integrated AI chat window for logic walkthroughs and conceptual help.

• 📱 Responsive Design

  • Works seamlessly on desktop and mobile.

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🧩 Tech Stack

Layer	Tech
Frontend	React.js, Tailwind CSS, ShadCN, React Router
Backend	Node.js, Express.js
Database	MongoDB (Mongoose ORM)
Code Execution	Judge0 API
AI	Gemini API for hints & assistant
Authentication	JWT-based secure login
UI Elements	Lucide Icons, Custom Theming

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📈 Screenshots

Problem Page	UserDashboard

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🧪 How to Run Locally

# 1. Clone the repo
git clone https://github.com/your-username/codedrill.git
cd codedrill

# 2. Install dependencies
npm install

# 3. Setup Environment Variables (.env)
Fill this with your own values...
PORT = 
DATABASE_STRING=
JWTKEY=''
REDIS_PORT=
REDIS_PASS=
REDIS_HOST=
JUDGE0_API=
GEMINI_API=
CLOUDINARY_CLOUDNAME=
CLOUDINARY_APIKEY=
CLOUDINARY_APISECRET=
CLOUDINARY_API_ENVIRONMENTVARIABLE=CLOUDINARY_URL=

# 4. Start the server and client
npm run dev