The Final Stone
You have a list of stones with different weights. The result of hitting two stones will be a new stone with a weight difference between the two stones.
Your goal is to find the weight of the final stone. If no stones left, the result is 0.
The algorith is very simple:
- get the two biggest stones in the batch
- hit and get the resulting stone
- put the resulting stone back in the batch.
For the Speedy category, you can think about your solution for a million stones
Input: List of stones as list of ints
Output: Int.
Example:
assert final_stone([3, 5, 1, 1, 9]) == 1 assert final_stone([1, 2, 3]) == 0 assert final_stone([1, 2, 3, 4]) == 0 assert final_stone([1, 2, 3, 4, 5]) == 1
Precondition: only positive, non-zero values. The list of stones can be empty
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
checkio sync
(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
checkio install-plugin --ff
checkio install-plugin --chromium
Read more here about other functionality that the checkio client provides. Feel free to submit an issue in case of any difficulties.
