A standalone cli tool for abc, therefore we can use only download it.
You can see the problem statements of the each Atcoder beginners contests and test your code with sample inputs in command line.
$ curl -s https://api.github.com/repos/sux2mfgj/abc_util/releases/latest \
| grep "browser_download_url" | cut -d : -f 2,3 \
| tr -d \" \
| wget -qi -
$ tar xvf abc_util_v0.1.0_for_x86_64_linux.tar.gz
$ cp ./abc_util <install path, (e.g. $HOME/local/bin)>
TBD
MIT. please read the LICENSE file.