Recently I developed a CLI tool for C++ programmers on Codeforces, and also for my own use.
A CLI tool to speed up testing process during contests of Codeforces.
It helps you to manage test cases and do regression test.
Now it is only for C++ programmer using vim under unix-family env.
If you are interested about this CLI tool, please refer to this github repo link: https://github.com/IvanJobs/cf