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Second solution in Clear category for Luhn Algorithm: Credit Card Checker by mortonfox
def checker(card: str) -> bool:
return sum(sum(divmod(c * (2 - i % 2), 10)) for i, c in enumerate(map(int, card.replace(' ', '')))) % 10 == 0
print("Example:")
print(checker("4137 8947 1175 5904"))
# These "asserts" are used for self-checking
assert checker("4137 8947 1175 5904") == True
assert checker("5468 1234 5678 9123") == False
assert checker("4539 1488 0343 6467") == True
print("The mission is done! Click 'Check Solution' to earn rewards!")
Sept. 12, 2024
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