You just wrote a cpp program that reads it config from a file named `conf.ini`

As you don't want to bother adding all files manualy, you have decided to use `.gitignore`

You need to create a `.gitignore` file that will:
- ignore all files that end with suffix `.swp` (backup files)
- ignore every files in the `out` directory except `conf.ini`

In other words, once the `.gitignore` file written, the command `git add .` should only stage:
- .gitignore
- main.cpp
- out/conf.ini