三个红色和两个黑色
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# Z# D6 H% X+ ]- Z, ]最后那个说我不知道我戴什么颜色帽子.6 g" a* d# R5 R6 B' s: \
- 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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8 P* g0 k/ [9 k/ n中间那个说我也不知道我戴什么颜色帽子.+ v" z6 l0 B" Q' {( q0 _
- 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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* ~& e& X+ j! d; J公仔箱論壇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。: T" B1 Y# \5 Y# m3 c0 U% j% k- l
- #1 must be wearing RED |
發表於 2008-12-3 10:06 AM
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