0 in which traffic can move in one direction only -- ensrettet
a one-way street.
1 valid for travel in one direction only -- enkelt-
a one-way ticket.
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
Vi kan færdiggøre det trin for trin, uanset hvor lang vejen er, og den kan ikke færdiggøres, uanset hvor kort vejen er, hvis du ikke engang markerer dit fodaftryk.