mirror of
https://github.com/TheAlgorithms/Python.git
synced 2024-11-24 13:31:07 +00:00
1f8a21d727
* Tighten up psf/black and flake8
* Fix some tests
* Fix some E741
* Fix some E741
* updating DIRECTORY.md
Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
43 lines
1.2 KiB
Python
43 lines
1.2 KiB
Python
"""Convert a Decimal Number to an Octal Number."""
|
|
|
|
import math
|
|
|
|
# Modified from:
|
|
# https://github.com/TheAlgorithms/Javascript/blob/master/Conversions/DecimalToOctal.js
|
|
|
|
|
|
def decimal_to_octal(num: int) -> str:
|
|
"""Convert a Decimal Number to an Octal Number.
|
|
|
|
>>> all(decimal_to_octal(i) == oct(i) for i in (0, 2, 8, 64, 65, 216, 255, 256, 512))
|
|
True
|
|
"""
|
|
octal = 0
|
|
counter = 0
|
|
while num > 0:
|
|
remainder = num % 8
|
|
octal = octal + (remainder * math.pow(10, counter))
|
|
counter += 1
|
|
num = math.floor(num / 8) # basically /= 8 without remainder if any
|
|
# This formatting removes trailing '.0' from `octal`.
|
|
return f"0o{int(octal)}"
|
|
|
|
|
|
def main():
|
|
"""Print octal equivalents of decimal numbers."""
|
|
print("\n2 in octal is:")
|
|
print(decimal_to_octal(2)) # = 2
|
|
print("\n8 in octal is:")
|
|
print(decimal_to_octal(8)) # = 10
|
|
print("\n65 in octal is:")
|
|
print(decimal_to_octal(65)) # = 101
|
|
print("\n216 in octal is:")
|
|
print(decimal_to_octal(216)) # = 330
|
|
print("\n512 in octal is:")
|
|
print(decimal_to_octal(512)) # = 1000
|
|
print("\n")
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main()
|