mirror of
https://github.com/TheAlgorithms/Python.git
synced 2024-11-27 15:01:08 +00:00
4b79d771cd
* Add more ruff rules * Add more ruff rules * pre-commit: Update ruff v0.0.269 -> v0.0.270 * Apply suggestions from code review * Fix doctest * Fix doctest (ignore whitespace) * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci --------- Co-authored-by: Dhruv Manilawala <dhruvmanila@gmail.com> Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
56 lines
1.3 KiB
Python
56 lines
1.3 KiB
Python
"""
|
|
== Pronic Number ==
|
|
A number n is said to be a Proic number if
|
|
there exists an integer m such that n = m * (m + 1)
|
|
|
|
Examples of Proic Numbers: 0, 2, 6, 12, 20, 30, 42, 56, 72, 90, 110 ...
|
|
https://en.wikipedia.org/wiki/Pronic_number
|
|
"""
|
|
|
|
# Author : Akshay Dubey (https://github.com/itsAkshayDubey)
|
|
|
|
|
|
def is_pronic(number: int) -> bool:
|
|
"""
|
|
# doctest: +NORMALIZE_WHITESPACE
|
|
This functions takes an integer number as input.
|
|
returns True if the number is pronic.
|
|
>>> is_pronic(-1)
|
|
False
|
|
>>> is_pronic(0)
|
|
True
|
|
>>> is_pronic(2)
|
|
True
|
|
>>> is_pronic(5)
|
|
False
|
|
>>> is_pronic(6)
|
|
True
|
|
>>> is_pronic(8)
|
|
False
|
|
>>> is_pronic(30)
|
|
True
|
|
>>> is_pronic(32)
|
|
False
|
|
>>> is_pronic(2147441940)
|
|
True
|
|
>>> is_pronic(9223372033963249500)
|
|
True
|
|
>>> is_pronic(6.0)
|
|
Traceback (most recent call last):
|
|
...
|
|
TypeError: Input value of [number=6.0] must be an integer
|
|
"""
|
|
if not isinstance(number, int):
|
|
msg = f"Input value of [number={number}] must be an integer"
|
|
raise TypeError(msg)
|
|
if number < 0 or number % 2 == 1:
|
|
return False
|
|
number_sqrt = int(number**0.5)
|
|
return number == number_sqrt * (number_sqrt + 1)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
import doctest
|
|
|
|
doctest.testmod()
|