leet code exercice, preferably doing tdd
devcontainer from https://github.com/microsoft/vscode-dev-containers/tree/main/containers/python-3/.devcontainer
python gitignore from https://github.com/github/gitignore/blob/main/Python.gitignore
Some solutions are my own, some come from neetcode.io
the risk i took was calculated but man am i bad at math