生日問題 - 拼圖
By Elizabeth
at 2011-01-27T11:08
at 2011-01-27T11:08
Table of Contents
據說是對岸的
微軟中國研究院面試題
不過我想到了一點小改變~
私心希望 1/28 00:00 之前不要推答案
我想想算了歡迎討論答案xd
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小明和小強都是張老師的學生,張老師的生日是M月N日,
2人都知道張老師的生日是下列10組中的其中某一天,
張老師把M值告訴了小明,把N值告訴了小強,
張老師問他們知道他的生日是那一天嗎?
3月4日 3月5日 3月8日
6月4日 6月7日
9月1日 9月5日
12月1日 12月2日 12月8日
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小明:要是小強知道,我一定知道。
小強回話說:本來我也不知道,但是現在我知道了
小明說:哦,那我也知道了
Q:
老師生日?
============後 記=====================================================
我想大家可能覺得這題太簡單...因為是我改的 = ="
其實原本小明第一句話是
"如果我不知道的話,小強肯定也不知道"
造成許多爭議... 因為只拿月份的人一定不知道正解,
所以不能推得另一個人一定不知道吧
請大家也幫我想想這樣說的話是不是答案會一樣呢?
「要是小強知道,我一定知道」的否逆命題是什麼?
防範推文看到解答頁
--
標題 [問題] 新竹有鬼屋的活動嗎??
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