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master
conversions/decimal_to_octal.py
43 строки
1 KB
Dhruv Manilawala
fix(mypy): type annotations for conversions algorithms (#4314)
04 апр 2021, 16:25
Не верифицирован
04 апр 2021, 16:25
20c7518
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"""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.floor(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() -> None: """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()