Space efficient solution O(1) #269

	name: Python Checks
	on:
	pull_request:
	push:
	branches:
	- master
	workflow_dispatch:
	jobs:
	lint:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- uses: actions/setup-python@v2
	with:
	python-version: 3.7
	- name: Install test dependencies
	run: \|
	python -m pip install --upgrade pip
	python -m pip install -r .github/lint-requirements.txt
	- name: Lint with flake8
	run: \|
	echo "::add-matcher::.github/flake8_matcher.json"
	flake8 --count --statistics --show-source --append-config=tox.ini .
	autoformat:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- uses: actions/setup-python@v2
	- name: Install test dependencies
	run: \|
	python -m pip install --upgrade pip
	python -m pip install black==22.3.0
	- name: Autoformatter
	run: \|
	black --diff --check .
	test:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: [3.7, 3.9]
	steps:
	- uses: actions/checkout@v2
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install test dependencies
	run: \|
	python -m pip install --upgrade pip
	python -m pip install pytest pytest-randomly
	- name: Test with pytest
	run: \|
	pytest

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