三个红色和两个黑色
- m/ x% x. _- K+ a# dtvb now,tvbnow,bttvbTVBNOW 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。 o$ t6 I1 m5 f- a, P% T
最后那个说我不知道我戴什么颜色帽子.
1 D3 `& f2 X4 B0 u, {4 z, h4 ctvb now,tvbnow,bttvb- 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.5.39.217.77+ l R+ _4 F! g5 o+ ^
- \# j. D" D( Q! G中间那个说我也不知道我戴什么颜色帽子.0 m3 o: s2 |1 o+ c
- 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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D, e- A- n9 ]# |: F# R' R/ T2 a但是第一个说我知道我戴什么颜色帽子.公仔箱論壇 }5 j7 |& R+ L/ m" i+ `
- #1 must be wearing RED |
發表於 2008-12-3 10:06 AM
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