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leetcode-daily-card

A Python script that automatically fetches the daily LeetCode challenge and renders it as a PNG card or Markdown document.

clawdbot

emoji

📋

linux

darwin

win32

LeetCode Daily Card Generator

A Python script that automatically fetches the daily LeetCode challenge and renders it as a PNG card or Markdown document.

Features

Automatic Daily Fetch: Retrieves the current daily LeetCode problem via GraphQL API
Two-Step Rendering: HTML → Markdown → PNG for optimal text rendering
CJK Support: Uses system CJK fonts (Microsoft YaHei, SimHei, etc.) for Chinese characters
Multiple Output Formats: Supports .png for image cards and .md for Markdown documents
Clean Unicode Handling: Removes zero-width spaces and other invisible Unicode characters

Installation

pip install Pillow html2text

Dependencies

Pillow: For PNG/JPG image rendering
html2text: For converting HTML content to Markdown

Usage

# Generate PNG card
python scripts/run.py output.png

# Generate Markdown document
python scripts/run.py output.md

Output Formats

PNG Card

Blue gradient header
White card body with rounded corners
Dark gradient background
Displays: title, question ID, difficulty, acceptance rate, tags, description

Markdown Document

Clean Markdown formatting
Question metadata in Info section
Full problem description
Example test cases
Link to problem page

Supported Platforms

Windows: Uses msyh.ttc (Microsoft YaHei), simhei.ttf, etc.
macOS: Uses PingFang.ttc, STHeiti Light.ttc
Linux: Uses NotoSansCJK, DejaVuSans.ttf, wqy-microhei.ttc

Workflow

LeetCode API (HTML) 
    ↓
html2text (Markdown)
    ↓
Markdown → Plain Text (cleanup)
    ↓
Pillow (PNG Image)

Example

python scripts/run.py daily.png
# Output: daily.png with the daily LeetCode challenge card

python scripts/run.py daily.md
# Output: daily.md with formatted Markdown content

Notes

The script requires internet access to fetch from LeetCode API
Formula rendering is not supported (plain text only)
Chinese fonts must be installed on the system for CJK character display

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