15-puzzle Solvability
15-puzzle is a quite old and famous puzzle, which had its own peak of interest!
In this mission you are given a position of tiles - an array of 4 arrays of equal length with all numbers from 1 to 16 incl. in arbitrary order (but number 16 always stands for empty place!). Your function should return a boolean value, if this combination of tiles is solvable (may be transformed by valid moves to "normal" order) or not, as true or false respectively.
Here is an interesting video about the puzzle itself and its solvability problem with the algorithm of checking explained. So if you don't like spoilers, you may try to solve the mission first without watching the video.
Input: A position of tiles as an array of 4 arrays of numbers from 1 to 16 incl.
Output: Solvability of puzzle as boolean value.
Examples:
assert.strictEqual(
fifteenPuzzle([
[1, 2, 3, 4],
...
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=js 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.
Welcome to Pair Programming! Engage in real-time collaboration on coding projects by starting a session and sharing the provided unique URL with friends or colleagues. This feature is perfect for joint project development, debugging, or learning new skills together. Simply click 'Start Session' to begin your collaborative coding journey!
You are trying to join a pair programming session that has not started yet.
Please wait for the session creator to join.
It looks like the creator of the pair programming session closed the editor window.
It might happen accidentally, so that you can wait for reconnection.
