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如果第三天看了狗以后杀的,那末至少3条狗中有一条病狗, 如果第三天直接把自己的狗拉来杀了,哪至少2条狗中游一条病狗.16
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(firefox)
(#238309@0)
Last Updated: 2001-10-26
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微软试题:一共50个主人,每人一条狗,其中确认有病狗。病狗一眼就可以分辨出来,而每个主人一天只能看一次,只能看到别人的狗,要求在确认出自己的狗是病狗时必须开枪杀了它。结果第三天听到一阵枪声,请问多少条狗是病狗?
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