问题就是要使移动的瓶子数最小化。你可以假定唯一的问题就是使箱子间的移动次数最小化。

The problem is to minimize the number of bottles that are moved. You may assume that the only problem is to minimize the number of movements between boxes.

youdao

水资源曾经很丰富，多的就像天空中黑压压的鸽子一样数不过来。 人们曾经很傻地认为把水装进瓶子里就是对水资源的保护。

Watercourses once seemed as boundless as those pigeons that darkened the sky overhead, and the notion of protecting water was as silly as bottling it.

youdao