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A free collection of curated, high-quality resources to take you from Bronze to Platinum and beyond.

Thank you to the following companies:

Documentation + Contributing

See the contributing module. All contributions are welcome! To get started, simply pick an issue you'd like to work on, leave a comment, and submit a Pull Request!

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Our Team

The USACO Guide is run by the Competitive Programming Initiative. We're looking for Content Authors to join our team to help us improve the Guide! Learn more here.

Core Team

  • Nathan Wang
  • Maggie Liu (Since Aug 2021)
  • Melody Yu (Since Aug 2021)
  • Andi Qu
  • Siyong Huang
  • Darren Yao
  • Michael Cao

Content Managers

  • Qi Wang (Since Jun 2021)
  • Dong Liu (Since Jun 2021)
  • Neo Wang (Since Aug 2021)
  • Kevin Sheng (Since Oct 2021)

Former Core Team

  • Benjamin Qi
  • Andrew Wang
  • Nathan Chen

Current Content Authors

  • Jesse Choe (Since Feb 2021)
  • Sofia Yang (Since Apr 2021)
  • Nathan Gong (Since Apr 2021)
  • Timothy Gao (Since May 2021)
  • Sathvik Chundru (Since May 2021)
  • Brad Ma (Since Jun 2021)
  • Albert Ye (Since Jun 2021)
  • Arpan Banerjee (Since Jun 2021)
  • Ryan Chou (Since Jul 2021)
  • Aadit Ambadkar (Since Aug 2021)
  • Dustin Miao (Since Aug 2021)
  • Ben Dodge (Since Aug 2021)
  • Jeffrey Zhang (Since Feb 2022)
  • Chongtian Ma (Since May 2022)
  • Aditya Gupta (Since Jun 2022)
  • Chuyang Wang (Since August 2022)
  • Aakash Gokhale (Since August 2022)
  • Paul Chen (Since August 2022)
  • This could be you! Apply here.

Past Content Authors

  • Óscar Garries Urbina
  • Mrinall Umasudhan
  • Andrew Cheng
  • Zhixin Wang
  • Jeffrey Meng
  • Ananth Kashyap

Tech Stack

Our front-end is built with:

  • React
  • Gatsby
  • Typescript
  • Tailwind CSS & Tailwind UI
  • Storybook and Chromatic
  • MDX (JSX in Markdown) with XDM compiler
  • Firebase
  • Deployed with Vercel

Contact Info

If you have any questions, please reach out to us at


Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.