Not all of the elements are important. What you need to do here is to remove from the list all of the elements before the given one.
For the illustration we have a list [1, 2, 3, 4, 5] and we need to remove all elements that go before 3 - which is 1 and 2.
We have two edge cases here: (1) if a cutting element cannot be found, then the list shoudn't be changed. (2) if the list is empty, then it should remain empty.
Input: List and the border element.
Output: Iterable (tuple, list, iterator ...).
remove_all_before([1, 2, 3, 4, 5], 3) == [3, 4, 5] remove_all_before([1, 1, 2, 2, 3, 3], 2) == [2, 2, 3, 3]
CheckiO Extensions allow you to use local files to solve missions. More info in a blog post.
In order to install CheckiO client you'll need installed Python (version at least 3.8)
Install CheckiO Client first:
pip3 install checkio_client
Configure your tool
checkio --domain=py config --key=
Sync solutions into your local folder
(in beta testing) Launch local server so your browser can use it and sync solution between local file end extension on the fly. (doesn't work for safari)
checkio serv -d
Alternatevly, you can install Chrome extension or FF addon
checkio install-plugin --ff
checkio install-plugin --chromium