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45 changes: 45 additions & 0 deletions other/lucky_number.py
Original file line number Diff line number Diff line change
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# Algoritma untuk mengecek apakah bilangan itu lucky number
# https://en.wikipedia.org/wiki/Lucky_number
def is_lucky_number(number):
"""
Lucky number adalah angka yang selamat dari persortiran
angka berdasarkan posisi mirip Sieve.

>>> is_lucky_number(897)
'Angka Lucky'
>>> is_lucky_number(80)
'Angka Lucky'
>>> is_lucky_number(1232)
'Bukan Angka Lucky'
>>> is_lucky_number(700)
'Bukan Angka Lucky'

"""
benar , bukan = "Angka Lucky" , "Bukan Angka Lucky"
ar = set()

while number != 0:
digit = number % 10

if digit in ar:
return bukan

ar.add(digit)
number //= 10

return benar


def main(args=None):
import doctest

doctest.testmod()

print(is_lucky_number(897)) # Angka Lucky
print(is_lucky_number(80)) # Angka Lucky
print(is_lucky_number(1232)) # Bukan Angka Lucky
print(is_lucky_number(700)) # Bukan Angka Lucky


if __name__ == "__main__":
main()
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