Cheat Code • Company-Wise LeetCode Interview Tracker

A high-aesthetic, feature-rich web application to track, practice, and master company-wise LeetCode interview questions across 659 companies.

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✨ Features

• 659 Companies Indexed: Pre-compiled dataset of 3,399 verified LeetCode questions across FAANG, Big Tech, FinTech & Quant, and Top Unicorns.
• 5 Recency Timeframes: Filter questions by 30 Days (Hot 🔥), 3 Months, 6 Months, 1 Year+, and All-Time.
• Deep Todo & SRS Tracking: 5 problem states (Todo, In Progress, Solved, Review Needed, Mastered) with automated Spaced Repetition reminders (1d, 3d, 7d, 30d).
• Personal Markdown Notes: Jot down approaches, time complexity $O(N)$, space complexity $O(1)$, and edge cases with live edit/preview.
• Multi-Language Code Scratchpad: Tab-indentable code editor for Python, Java, C++, and JavaScript with boilerplate starter generation.
• Interview Stopwatch & Countdown Timers: Integrated 25-minute and 45-minute countdown timers with audio cues.
• Company Overlap Matrix: Select multiple companies (e.g. Google + Meta + Amazon) to surface high-yield intersecting questions.
• Timed Mock Interview Simulator: Launches a 45-minute technical interview with 2 company-frequent questions and an interview rubric checklist.
• 52-Week Activity Heatmap: GitHub-style activity contribution grid and streak flame counter 🔥.
• Power User Hotkeys: Navigate with j/k, cycle status with Space/x, bookmark with b, spin roulette with r, search with /.
• Sound Effects & Confetti: Synthesized Web Audio chimes and particle confetti on solving questions.
• Data Portability: Full JSON backup export, JSON restore, and CSV export.

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🚀 Quick Start

1. Install Dependencies

npm install

2. Run Development Server

npm run dev

Open http://localhost:3000 in your browser.

3. Build for Production

npm run build

4. Preview Production Build

npm run preview

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⌨️ Keyboard Shortcuts

Shortcut	Action
/ or Ctrl+K	Focus Search Bar
j / k	Navigate Next / Previous Question
Space or x	Cycle Question Status (Todo → Solved)
Enter	Open Problem Workspace Modal
b	Toggle Bookmark / Star
r	Random Problem Roulette 🎲
o	Open Company Overlap Matrix
m	Launch Mock Interview Session
a	Open Analytics & Activity Heatmap
?	Show Shortcuts Cheat Sheet
Esc	Close Active Modal

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📂 Project Structure

leetcode/
├── public/
│   └── data/
│       └── leetcode_company_data.json   # Pre-compiled 1.95MB static bundle
├── scripts/
│   ├── build_dataset.py                 # Parser & compiler for 659 companies
│   └── verify_app.py                    # Automated test & validation suite
├── src/
│   ├── components/                      # UI components (Navbar, Table, Modals, etc.)
│   ├── data/
│   │   └── company_meta.json            # Fast-bootstrap company metadata
│   ├── services/
│   │   └── storage.ts                   # LocalStorage, SRS, export/import
│   ├── types/
│   │   └── index.ts                     # TypeScript definitions
│   ├── utils/
│   │   └── sound.ts                     # Web Audio synthesizer
│   ├── App.tsx                          # Core application orchestrator
│   ├── index.css                        # Design tokens & theme styles
│   └── main.tsx                         # Entry point
└── repo_data/                           # Raw CSV files from upstream repository

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📄 Credits

Interview question data sourced and updated from snehasishroy/leetcode-companywise-interview-questions.

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👥 Contributors

• Abhinav Sharma
• Bismeet

See CONTRIBUTORS.md for details.