Obviously you can't weigh each coin against all of the others, so you'll have to weigh several coins at the same time by splitting the stack into multiple piles then narrowing down where the false coin is.
显然, 您无法将每枚硬币与所有其他硬币进行称量,因此您必须同时称量几枚硬币,方法是将一叠硬币分成多堆,然后缩小假硬币的位置。