Each room has exactly three doors to other rooms on that floor, except the control panel room, which connects to only one, there are no hallways, and you can ignore stairs.

每个房间都有三扇门通往该层的其他房间，除了控制面板室，它只连接一个，没有走廊，你可以忽略楼梯。

On the fifth highest floor, to fulfill our starting conditions, we'd need four rooms with three neighbors each, plus the control panel room with one neighbor, which makes 13 total neighbors.

在最高的第五层， 为了满足我们的起始条件，我们需要四个房间， 每个房间有三个邻居，加上控制面板室有一个邻居，总共有 13 个邻居。

For starters, we know that on the correct floor there's one room, let's call it room A, with one door to the control panel room, plus one door to room B, and one to C.

对于初学者，我们知道在正确的楼层有一个房间，我们称它为房间 A，有一扇门通往控制面板室，一扇门通往房间 B，一扇门通往房间 C。