cfmate 0.1.2

A Codeforces CLI tool — fetch, display, and test against problems.

Disclaimer

This tool is not affiliated with Codeforces.

It fetches publicly available problem statements for personal use only. Users must comply with Codeforces Terms of Service: https://codeforces.com/terms

This tool does not store or redistribute problems beyond local caching.

cf-tool

A fast, Codeforces CLI — fetch problems, display them cleanly, and test your solutions against sample cases, all from the terminal.

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Features

• cf get — fetch and display any Codeforces problem with clean Rich formatting
• cf run — run your solution against all sample tests, with pass/fail output and diffs
• Local cache — problems are saved to .cf_cache/ so repeated fetches are instant
• Multi-language — Python, C++, C, Java, JavaScript, TypeScript, Ruby, Go, Rust
• Smart ID inference — name your file 1829A.py and skip the --problem flag
• Clean UX — spinner for loading, no fake delays, no excessive color

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Installation

git clone https://github.com/yourname/cf-tool.git
cd cf-tool
pip install -e .

This registers the cf command globally.

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Usage

Fetch a problem

cf get 1829A
cf get 2227D --no-cache   # bypass cache

Run your solution

# Specify the problem explicitly
cf run solution.py --problem 1829A

# Or name your file after the problem — ID is inferred automatically
cf run 1829A.py
cf run 2227D.cpp

# Custom time limit (milliseconds)
cf run solution.py -p 1829A --time-limit 2000

Manage the cache

cf cache list           # list cached problems
cf cache clear 1829A    # remove one problem
cf cache clear          # remove everything

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Supported Languages

Extension	Language	How it runs
.py	Python 3	python3 file.py
.cpp	C++17	g++ -O2 then run
.c	C	gcc -O2 then run
.java	Java	javac then java
.js	JavaScript	node file.js
.ts	TypeScript	ts-node file.ts
.rb	Ruby	ruby file.rb
.go	Go	go run file.go
.rs	Rust	rustc -O then run

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Project Structure

cf_tool/
├── cf_tool/
│   ├── __init__.py     # package version
│   ├── cli.py          # Typer CLI entry point
│   ├── scraper.py      # cloudscraper HTTP layer
│   ├── parser.py       # BeautifulSoup HTML → Problem
│   ├── runner.py       # subprocess test execution
│   ├── formatter.py    # Rich terminal output
│   ├── cache.py        # JSON local cache
│   ├── models.py       # Problem + TestCase dataclasses
│   └── utils.py        # LaTeX cleaning, ID parsing, normalization
├── pyproject.toml
├── requirements.txt
└── README.md

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Exit Codes

Code	Meaning
0	All tests passed
1	One or more tests failed / error

This makes cf run composable in shell scripts and CI pipelines.

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License

MIT