cp.nvim

neovim plugin for competitive programming.

https://github.com/user-attachments/assets/cb142535-fba0-4280-8f11-66ad1ca50ca9

video config

Sample test data from codeforces is scraped via cloudscraper. Use at your own risk.

Features

• Support for multiple online judges (AtCoder, Codeforces, CSES)
• Multi-language support (C++, Python)
• Automatic problem scraping and test case management
• Integrated build, run, and debug commands
• Enhanced test viewer with individual test case management
• LuaSnip integration for contest-specific snippets

Requirements

• Neovim 0.10.0+
• uv: problem scraping (optional)
• LuaSnip: contest-specific snippets (optional)

Documentation

:help cp.nvim

Philosophy

This plugin is highly tuned to my workflow and may not fit for you. Personally, I believe there are two aspects of a cp workflow:

• local work (i.e. coding, running test cases)
• site work (i.e. problem reading, submitting)

Namely, I do not like the idea of submitting problems locally - the experience will never quite offer what the remote does. Therefore, cp.nvim works as follows:

1. Find a problem

• Browse the remote and find it
• Read it on the remote

2. Set up your local environment with :CP ...

• test cases and expected output automatically scraped
• templates automatically configured

3. Solve the problem locally

• easy to run/debug
• easy to diff actual vs. expected output

4. Submit the problem (on the remote!)

Similar Projects

• competitest.nvim
• assistant.nvim

TODO

• finer-tuned problem limits (i.e. per-problem codeforces time, memory)
• better highlighting
• notify discord members
• codeforces support (blocked: https://codeforces.com/blog/entry/146423)