三个红色和两个黑色5.39.217.77:88984 @% a% i. ]$ [
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最后那个说我不知道我戴什么颜色帽子.公仔箱論壇! o3 [' i- _9 \7 v9 i5 l
- 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.5.39.217.77:8898# W0 l$ i* F N
0 w) T& v: X: W2 O! g" K中间那个说我也不知道我戴什么颜色帽子.3 q7 B1 p+ B( J: _' f4 l- D
- 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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9 E; v" j, ?8 m5 u8 itvb now,tvbnow,bttvb但是第一个说我知道我戴什么颜色帽子.公仔箱論壇9 x5 W% S5 V. h, B. E
- #1 must be wearing RED |
發表於 2008-12-3 10:06 AM
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