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你能解开这个控制室的难题吗? – 译学馆
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你能解开这个控制室的难题吗?

Can you solve the control room riddle? - Dennis Shasha

[音乐]
[Music]
作为你们国家的顶尖间谍
As your country’s top spy,
你必须渗透到邪恶集团的总部
you must infiltrate the headquarters of the evil syndicate,
找到隐秘的控制面板
find the secret control panel,
并关闭他们的死亡射线
and deactivate their death ray.
但是 你必须遵从你的监视团队
But all you have to go on is the following information
提供的以下信息:
picked up by your surveillance team.
总部是一个巨大的金字塔
The headquarters is a massive pyramid
顶层有一个房间
with a single room at the top level,
下层有两个房间
two rooms on the next,
依次类推
and so on.
控制面板隐藏在最高层的画背后
The control panel is hidden behind a painting
最高层满足以下条件:
on the highest floor that can satisfy the following conditions:
除了控制面板房
Each room has exactly three doors to other rooms on that floor,
只有一扇门
except the control panel room,
其它房间都有三扇门连通别的房间
which connects to only one,
没有走廊
there are no hallways,
忽略楼梯
and you can ignore stairs.
不幸的是 你没有平面图
Unfortunately, you don’t have a floor plan,
而且在警报系统重新激活之前
and you’ll only have enough time to search a single floor
你只有搜索一个楼层的时间
before the alarm system reactivates.
你能弄清控制室在哪一层吗?
Can you figure out which floor the control room is on?
暂停视频 独立思考
Pause now to solve the riddle yourself.
答案倒计时:3 答案倒计时:2
Answer in: 3 Answer in: 2
答案倒计时:1
Answer in: 1
为了解决这个问题
To solve this problem,
我们需要将其可视化
we need to visualize it.
一开始 我们知道在正确的楼层有一个房间
For starters, we know that on the correct floor there’s one room,
我们称之为房间A
let’s call it room A,
房间A有一扇门可以进入控制面板房
with one door to the control panel room,
还有一扇门通向房间B 另一扇通向房间C
plus one door to room B, and one to C.
所以至少有四个房间
So there must be at least four rooms,
我们可以用圆圈表示这些房间
which we can represent as circles,
在他们之间连线表示门廊
drawing lines between them for the doorways.
不过一旦我们连接房间B和C
But once we connect rooms B and C,
就没有其他连接的可能
there are no other connections possible,
所以从顶层到第四层的情况就排除了
so the fourth floor down from the top is out.
我们知道控制面板必须尽可能放在高层
We know the control panel has to be as high up as possible,
所以我们从金字塔的上面往下找
so let’s make our way down the pyramid.
第五层也不可能有控制面板
The fifth highest floor doesn’t work either.
我们可以通过画图算出来
We can figure that out by drawing it,
但是为了确保我们没有错过任何可能性
but to be sure we haven’t missed any possibilities,
这有另一种方式
here’s another way.
每扇门都对应着我们图中的一条线
Every door corresponds to a line in our graph
可以使两个房间相邻
that makes two rooms into neighbors.
所以最后不管我们做了多少连接
So in the end, there have to be an even number of neighbors
都必须有偶数个相邻的房间
no matter how many connections we make.
从上数第五层
On the fifth highest floor,
为了满足我们的初始条件
to fulfill our starting conditions,
我们需要四个房间
we’d need four rooms
每个房间都有三个相邻的房间
with three neighbors each,
再加上一个相邻的控制面板房
plus the control panel room with one neighbor,
总共有13个相邻的房间
which makes 13 total neighbors.
由于这是一个奇数 这是不可能的
Since that’s an odd number, it’s not possible,
事实上 这也排除了每个有奇数个房间的楼层
and, in fact, this also rules out every floor that has an odd number of rooms.
所以让我们再往下一层
So let’s go one more floor down.
当我们抽出下面的房间时
When we draw out the rooms,
可以得到一个这样的房间布置图
low and behold, we can find an arrangement that works like this.
顺便说一下 这种展示不同对象之间的联系和关系
Incidentally, the study of such visual models
的视觉模型的研究方法
that show the connections and relationships between different objects
被称为图论
is known as graph theory.
在基本图中 表示对象的圆被称为节点
In a basic graph, the circles representing the objects are known as nodes,
而连接线被称为边
while the connecting lines are called edges.
研究这些图表的研究人员会提出如下问题:
Researchers studying such graphs ask questions like,
“这个节点到那个节点有多远?”
“How far is this node from that one?”
“支线最多的节点有多少边?”
“How many edges does the most popular node have?”
“两个节点之间是否有路线
“Is there a route between these two nodes,
如果有的话 有多长?”
and if so, how long is it?”
像这样的图形通常用于映射通信网络
Graphs like this are often used to map communication networks,
但它们几乎可以代表任何一种网络结构
but they can represent almost any kind of network,
从一个城市的交通连接
from transport connections within a city
到人与人之间的社会关系
and social relationships among people,
到蛋白质间的化学作用
to chemical interactions between proteins
或经不同的地点传播的流行疾病
or the spread of an epidemic through different locations.
所以 利用这个技巧 我们回到金字塔
So, armed with these techniques, back to the pyramid.
你避开了守卫和摄像头
You avoid the guards and security cameras,
渗入到从上数第六层
infiltrate the sixth floor from the top,
找到隐藏面板
find the hidden panel,
拉下一些显眼的开关
pull some conspicuous levers,
并将死亡射线抛到海里
and send the death ray crashing into the ocean.
现在 是时候解开这个谜团了
Now, time to solve the mystery
为什么你的监控团队总能给你提供一些隐藏的信息?
of why your surveillance team always gives you cryptic information.
大家好
Hi everybody.
如果你喜欢这个谜题的话
If you liked this riddle,
那么试着解开这两个谜题吧
try solving these two.
[音乐]
[Music]

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视频概述

作为你们国家的顶尖间谍,你必须渗透到邪恶集团的总部,找到隐秘的控制面板,并关闭他们的死亡射线……

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收集自网络

翻译译者

林邑

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审核团V

视频来源

https://www.youtube.com/watch?v=3mbdiky5dLw

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