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Zaurus 中文论坛 Forum Index » 经典难题

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开关问题
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米迈7500c



Joined: 01 Nov 2006
Posts: 46

小企鹅: 1568

PostPosted: 2006-Dec-04 Mon, pm4:06 Reply with quote
 Post subject: 开关问题

一间不透光的屋子里有三电视,门外有三个开关,每个管一台电视,开关只有开和关两种状态,请问,如何调整开关能准确指出哪个开关管哪台电视?
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wowotou



Joined: 27 Nov 2006
Posts: 38

小企鹅: 1101

PostPosted: 2006-Dec-06 Wed, am9:05 Reply with quote
 Post subject:

至少要进去一次吧 大概这样

开关: 关一个(记为A) 另两个开

进去

电视:关着的记为A 另两个分别记为B,C

关掉B的声音

出去

关掉开着的两个开关中的一个 如果声音没了 这个就是C(另一个是B) 否则是B(另一个是C)

全关 走人
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米迈7500c



Joined: 01 Nov 2006
Posts: 46

小企鹅: 1568

PostPosted: 2006-Dec-12 Tue, am9:30 Reply with quote
 Post subject:

wowotou的答案很接近了,可是还是不对.
正解是:把开关调成“开开关”,一小时后把两个开中的一个改成关,然后马上进去,用手摸机壳,发热的就是刚才关了的开关。从而把wowotou中间的一次省掉。这题我当时也做不了,也是直接要答案了的。
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wowotou



Joined: 27 Nov 2006
Posts: 38

小企鹅: 1101

PostPosted: 2006-Dec-12 Tue, pm5:35 Reply with quote
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我是依据声音 答案是依据发热 当时我还想 要是灯泡就没招了 题目没说不透音 我觉得我还算对 就进去了1次呀 Question 不过想起我邻居的厉害 一天听他打孩子 怒: “我才出去一会儿就在家看电视 !” “我没看。。。” “嘴硬 机壳都是热的!”

我的招差点 “嘴硬 走前我调在中央5台!”
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tanck



Joined: 21 Jan 2007
Posts: 5

小企鹅: 138

PostPosted: 2007-Jan-21 Sun, am3:20 Reply with quote
 Post subject:

这个问题没什么含义吧
是电视机诶
再怎么不透光的房间
电视机一开不就有光了?
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