The Hamming Distance
The Hamming distance between two binary integers is the number of bit positions that differs (read more about the Hamming distance on Wikipedia). For example:
117 = 0 1 1 1 0 1 0 1
17 = 0 0 0 1 0 0 0 1
H = 0+1+1+0+0+1+0+0 = 3
You are given two positive integers N, M in decimal form. You should calculate the Hamming distance between these two numbers in binary form.
Input: Two arguments as integers (int).
Output: The Hamming distance as an integer (int).
Examples:
assert checkio(117, 17) == 3 assert checkio(1, 2) == 2 assert checkio(16, 15) == 5 assert checkio(255, 1) == 7
How it is used:
This is a basis for Hamming code and other linear error-correcting programs. The Hamming distance is used in systematics as a measure of genetic distance. On a grid (ie: a chessboard,) the Hamming distance is the minimum number of moves it would take a rook to move from one cell to the other.
Precondition:
- 0 < n, m < 106
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.
