diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..90f8fbb --- /dev/null +++ b/.gitignore @@ -0,0 +1,176 @@ +# Created by https://www.toptal.com/developers/gitignore/api/python +# Edit at https://www.toptal.com/developers/gitignore?templates=python + +### Python ### +# Byte-compiled / optimized / DLL files +__pycache__/ +*.py[cod] +*$py.class + +# C extensions +*.so + +# Distribution / packaging +.Python +build/ +develop-eggs/ +dist/ +downloads/ +eggs/ +.eggs/ +lib/ +lib64/ +parts/ +sdist/ +var/ +wheels/ +share/python-wheels/ +*.egg-info/ +.installed.cfg +*.egg +MANIFEST + +# PyInstaller +# Usually these files are written by a python script from a template +# before PyInstaller builds the exe, so as to inject date/other infos into it. +*.manifest +*.spec + +# Installer logs +pip-log.txt +pip-delete-this-directory.txt + +# Unit test / coverage reports +htmlcov/ +.tox/ +.nox/ +.coverage +.coverage.* +.cache +nosetests.xml +coverage.xml +*.cover +*.py,cover +.hypothesis/ +.pytest_cache/ +cover/ + +# Translations +*.mo +*.pot + +# Django stuff: +*.log +local_settings.py +db.sqlite3 +db.sqlite3-journal + +# Flask stuff: +instance/ +.webassets-cache + +# Scrapy stuff: +.scrapy + +# Sphinx documentation +docs/_build/ + +# PyBuilder +.pybuilder/ +target/ + +# Jupyter Notebook +.ipynb_checkpoints + +# IPython +profile_default/ +ipython_config.py + +# pyenv +# For a library or package, you might want to ignore these files since the code is +# intended to run in multiple environments; otherwise, check them in: +# .python-version + +# pipenv +# According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control. +# However, in case of collaboration, if having platform-specific dependencies or dependencies +# having no cross-platform support, pipenv may install dependencies that don't work, or not +# install all needed dependencies. +#Pipfile.lock + +# poetry +# Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control. +# This is especially recommended for binary packages to ensure reproducibility, and is more +# commonly ignored for libraries. +# https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control +#poetry.lock + +# pdm +# Similar to Pipfile.lock, it is generally recommended to include pdm.lock in version control. +#pdm.lock +# pdm stores project-wide configurations in .pdm.toml, but it is recommended to not include it +# in version control. +# https://pdm.fming.dev/#use-with-ide +.pdm.toml + +# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm +__pypackages__/ + +# Celery stuff +celerybeat-schedule +celerybeat.pid + +# SageMath parsed files +*.sage.py + +# Environments +.env +.venv +env/ +venv/ +ENV/ +env.bak/ +venv.bak/ + +# Spyder project settings +.spyderproject +.spyproject + +# Rope project settings +.ropeproject + +# mkdocs documentation +/site + +# mypy +.mypy_cache/ +.dmypy.json +dmypy.json + +# Pyre type checker +.pyre/ + +# pytype static type analyzer +.pytype/ + +# Cython debug symbols +cython_debug/ + +# PyCharm +# JetBrains specific template is maintained in a separate JetBrains.gitignore that can +# be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore +# and can be added to the global gitignore or merged into this file. For a more nuclear +# option (not recommended) you can uncomment the following to ignore the entire idea folder. +#.idea/ + +### Python Patch ### +# Poetry local configuration file - https://python-poetry.org/docs/configuration/#local-configuration +poetry.toml + +# ruff +.ruff_cache/ + +# LSP config files +pyrightconfig.json + +# End of https://www.toptal.com/developers/gitignore/api/python \ No newline at end of file diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..0a103b1 --- /dev/null +++ b/LICENSE @@ -0,0 +1,21 @@ +MIT License + +Copyright (c) 2025 Татьяна Муромцева + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. \ No newline at end of file diff --git a/src/fast_pow.py b/src/fast_pow.py index 1ba1dc1..001238a 100644 --- a/src/fast_pow.py +++ b/src/fast_pow.py @@ -1,6 +1,17 @@ -def fastPow(number, power): - result = number - while power != 1: - result *= result - power = power // 2 +def fast_pow(number, power): + # Обработка отрицательной степени + if power < 0: + number = 1 / number + power = -power + + result = 1.0 + base = float(number) + exp = int(power) + + while exp > 0: + if exp % 2 == 1: + result *= base + base *= base + exp //= 2 + return result diff --git a/src/luhn.py b/src/luhn.py index 11d993c..9de757e 100644 --- a/src/luhn.py +++ b/src/luhn.py @@ -1,14 +1,39 @@ -def luhnСheck(cardNumber): - digits = [int(d) for d in str(cardNumber) if d.isdigit()] +def luhn_check(card_number): + digits_str = "".join(filter(str.isdigit, str(card_number))) + if not digits_str: + return False + digits = [int(d) for d in digits_str] control = digits.pop() - parity = (len(digits))%2 + digits.reverse() + total = 0 - for i in range(len(digits)): - if i % 2 == parity: - doubled = digits[i] * 2 + for i, digit in enumerate(digits): + if i % 2 == 0: + doubled = digit * 2 if doubled > 9: doubled -= 9 total += doubled else: - total += digits[i] - return (total + control) % 10 == 0 + total += digit + total += control + return total % 10 == 0 + + +def main(): + print("Введите номер карты") + while True: + user_input = input("Введите номер карты: ").strip() + if user_input == "-1": + print("Выход из программы.") + break + try: + if luhn_check(user_input): + print("correct") + else: + print("incorrect") + except Exception as e: + print(f"Произошла ошибка: {e}") + + +if __name__ == "__main__": + main() diff --git a/test/test_fast_pow.py b/test/test_fast_pow.py index 5e4aebd..b3cfac7 100644 --- a/test/test_fast_pow.py +++ b/test/test_fast_pow.py @@ -1,9 +1,33 @@ -from src.fast_pow import fastPow +import math +import pytest +from src.fast_pow import fast_pow -def test_two_power_two(): - assert fastPow(2, 2) == 4 +def test_positive_integer_power(): + assert fast_pow(2, 3) == 8 + assert fast_pow(5, 0) == 1 -def test_negative(): - assert fastPow(-1, 4) == 1 +def test_zero_power(): + # Любое число в степени 0 равно 1 + assert fast_pow(5, 0) == 1 + + +def test_negative_integer_power(): + assert math.isclose(fast_pow(2, -2), 0.25) + assert math.isclose(fast_pow(10, -3), 0.001) + + +def test_fractional_power(): + assert math.isclose(fast_pow(9, 0.5), 3.0) + assert math.isclose(fast_pow(8, 1 / 3), 2.0) + + +def test_negative_base_integer_power(): + assert fast_pow(-2, 4) == 16 + assert math.isclose(fast_pow(-2, 3), -8) + + +def test_negative_base_fractional_power(): + with pytest.raises(ValueError): + fast_pow(-8, 1 / 3) diff --git a/test/test_luhn.py b/test/test_luhn.py index 1c021a2..d042e3d 100644 --- a/test/test_luhn.py +++ b/test/test_luhn.py @@ -1,9 +1,9 @@ -from src.luhn import luhnСheck +from src.luhn import luhn_check def test_good(): - assert luhnСheck("8571 2612 1234 5467") + assert luhn_check("8571 2612 1234 5467") def test_bad(): - assert not luhnСheck("4561 2612 1234 5463") \ No newline at end of file + assert not luhn_check("4561 2612 1234 5463")