LeetPick

LeetPick is a Chrome extension that helps you practice LeetCode faster by:

• Picking a random unsolved, free LeetCode problem.
• Playing a sound after submission (Accepted vs failure states like Wrong Answer, Runtime Error, etc.).

Features

• Random problem picker from LeetCode's problem API.
• Filters out:
  • paid-only problems
  • already accepted problems
• Caches problem slugs in chrome.storage.local for faster future picks.
• Submission feedback sounds on LeetCode problem pages:
  • success.webm for accepted submissions
  • fail.webm for failure outcomes

How It Works

1. Click the extension icon.
2. Click Pick Problem.
3. The extension opens a random unsolved free problem in a new tab.
4. On a LeetCode problem page, click Submit as usual.
5. Once result text updates, LeetPick plays the corresponding sound.

Installation (Developer Mode)

1. Open Chrome and go to chrome://extensions/.
2. Enable Developer mode.
3. Click Load unpacked.
4. Select the src folder in this project.

Project Structure

src/
	manifest.json     # Extension manifest (MV3)
	background.js     # Fetch/cache problem list and open random problem tab
	content.js        # Watches submission result panel and plays sounds
	popup.html        # Popup UI
	popup.js          # Popup button logic and runtime messaging
	style.css         # Popup styling

Permissions Used

• tabs: open the random problem in a new tab.
• storage: cache fetched problem slugs locally.
• https://leetcode.com/* host permission: call LeetCode API and run on LeetCode pages.

Notes

• Cached problem data is stored under leetcodeProblems in chrome.storage.local.
• To refresh the cached list, clear extension storage from Chrome extension settings and pick again.
• Audio autoplay restrictions are handled by priming audio on user click.

Version

Current version in manifest.json: 1.0