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len - len solution in Clear category for Beginning Zeros by kdim
def beginning_zeros(number: str) -> int:
return len(number) - len(number.lstrip('0'))
if __name__ == '__main__':
print("Example:")
print(beginning_zeros('100'))
# These "asserts" are used for self-checking and not for an auto-testing
assert beginning_zeros('100') == 0
assert beginning_zeros('001') == 2
assert beginning_zeros('100100') == 0
assert beginning_zeros('001001') == 2
assert beginning_zeros('012345679') == 1
assert beginning_zeros('0000') == 4
print("Coding complete? Click 'Check' to earn cool rewards!")
Jan. 27, 2021
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