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Functional (takewhile + reduce) solution in Clear category for Beginning Zeros by romeech
from functools import reduce
from itertools import takewhile
def beginning_zeros(number: str) -> int:
return reduce(lambda a,_: a + 1, takewhile(lambda x: x == '0', number), 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!")
Nov. 20, 2020
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