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Zero-Preserving Sort solution in Speedy category for Sort Except Zero by mparushkin
from collections.abc import Iterable
def except_zero(items: list[int]) -> Iterable[int]:
sorted_items = iter(sorted(filter(None, items)))
return [x if x == 0 else next(sorted_items) for x in items]
print("Example:")
print(list(except_zero([5, 3, 0, 0, 4, 1, 4, 0, 7])))
# These "asserts" are used for self-checking
assert list(except_zero([5, 3, 0, 0, 4, 1, 4, 0, 7])) == [1, 3, 0, 0, 4, 4, 5, 0, 7]
assert list(except_zero([0, 2, 3, 1, 0, 4, 5])) == [0, 1, 2, 3, 0, 4, 5]
assert list(except_zero([0, 0, 0, 1, 0])) == [0, 0, 0, 1, 0]
assert list(except_zero([4, 5, 3, 1, 1])) == [1, 1, 3, 4, 5]
assert list(except_zero([0, 0])) == [0, 0]
print("The mission is done! Click 'Check Solution' to earn rewards!")
Dec. 6, 2025
