发信人: ntuser155 (shshshsh), 信区: BrainTeaser
标 题: 两道面试题
发信站: BBS 未名空间站 (Tue Oct 28 23:31:52 2008)

Question 1 --- Light Bulbs

Room A has 3 switches while Room B has 3 light bulbs. One switch is only
connected to one light bulb and one light bulb is only connected to one
switch. All circuits are powered and each switch can be used to turn on the
associated light bulb.

You are allowed to go from one room to the other room ONLY ONCE and no
returning to the first room. This means that if you start from Room A, you
will go to Room B but not allowed to then return to Room A. Alternatively,
you may start from Room B.

Task: How do you determine which switch is connected to which light bulb?

uestion 2 --- Moving Mount Fuji

Task: How long will it take to move Mt. Fuji?

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发信人: orion (M42), 信区: BrainTeaser
标 题: Re: 两道面试题
发信站: BBS 未名空间站 (Wed Oct 29 00:26:12 2008), 转信

第一个题很有历史了，呵呵
第二个题，可不可以回答 all the time, since it's moving along with the earth
？呵呵，象是急转弯类型的
【 在 ntuser155 (shshshsh) 的大作中提到: 】
: Question 1 --- Light Bulbs
: Room A has 3 switches while Room B has 3 light bulbs. One switch is only
: connected to one light bulb and one light bulb is only connected to one
: switch. All circuits are powered and each switch can be used to turn on
the
: associated light bulb.
: You are allowed to go from one room to the other room ONLY ONCE and no
: returning to the first room. This means that if you start from Room A,
you
: will go to Room B but not allowed to then return to Room A. Alternatively
,
: you may start from Room B.
: Task: How do you determine which switch is connected to which light bulb?
: ...................


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