三个红色和两个黑色
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; K! v0 d/ K- S公仔箱論壇最后那个说我不知道我戴什么颜色帽子.3 F' R) X0 ]& s8 F# 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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中间那个说我也不知道我戴什么颜色帽子.
0 B& o3 X0 ^% ]) `. F4 l! b; z公仔箱論壇- 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.公仔箱論壇* D! P3 b/ o9 ^3 G( R! e& d
- [4 X2 W! E& h3 I; l! q8 `但是第一个说我知道我戴什么颜色帽子.公仔箱論壇" |" t7 }) |# v
- #1 must be wearing RED |
發表於 2008-12-3 10:06 AM
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