三个红色和两个黑色
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最后那个说我不知道我戴什么颜色帽子.
1 L5 D7 z, L$ F( r9 b- the front #1 , #2 must not be black/black. Otherwise, #3 will know he is red. #1/#2 must be red/red or red/black or black/red.
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) e1 [/ @, G$ i* X7 n$ H1 T中间那个说我也不知道我戴什么颜色帽子.1 k7 ]( C9 @) H% H/ o4 |: T
- for #2, if he see #1 wearing black, he can be sure he is red. since #2 cannot be sure, then #1 must NOT be wearing black.
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但是第一个说我知道我戴什么颜色帽子.TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。- r/ H# S0 U$ f$ t0 E6 S$ m
- #1 must be wearing RED |
發表於 2008-12-3 10:06 AM
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