I use VSCode and Neovim primarily.

For VSCode, these are the extensions that I'm using:

1. Competitive Programming Helper (cph) for running testcases locally.
2. VSCodeVim as a Vim emulator for VSCode.
3. Clang-Format to format C++ code.

For Neovim, see my init.vim.

In case you want to compile and run code manually, run:

make && ./main