Sorry, should be 3. Because if it is 2, then in the second day, I should already realize that. Only when in the 2 day, I found the other 2 owners didn't realize they have sick dogs. I know there are 3 dogs. one is mine.

clinux (C/Linux)
2001-10-26 -05:00

回到话题: 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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