Your mission is to sort the list by the frequency of numbers included in it. If a few numbers have an equal frequency - they should be sorted according to their natural order. For example: [5, 2, 4, 1, 1, 1, 3] ==> [1, 1, 1, 2, 3, 4, 5]
Input: Chaotic list of numbers.
Output: The list of numbers in which they are sorted by their frequency.
frequency_sorting([5, 3, 8, 11, 5, 6, 6, 5]) == [5, 5, 5, 6, 6, 3, 8, 11]
How it is used: For analyzing data using mathematical statistics and mathematical analysis, and for finding trends and predicting future changes (systems, phenomena, etc.)
array length <= 100
max number <= 100
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