三个红色和两个黑色
+ o4 K8 R5 B# K* s6 _# l公仔箱論壇公仔箱論壇/ v7 ?! G; I9 }; P3 d0 G
最后那个说我不知道我戴什么颜色帽子.
: F8 k W3 ~! i9 c, u' Ztvb 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.
( H- ?2 A$ f9 G5 \2 F# `0 ?. [tvb now,tvbnow,bttvb( N$ b3 }, k& Q9 e1 b
中间那个说我也不知道我戴什么颜色帽子.1 V/ b& S8 ~, N; w
- 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.
# t/ ?3 M# E+ r# M D/ o7 y: H5.39.217.76
/ i4 l8 ~( b1 |8 O! f7 Otvb now,tvbnow,bttvb但是第一个说我知道我戴什么颜色帽子.
) j# \0 N _9 T' E$ J: t# c; L8 x5.39.217.76- #1 must be wearing RED |
發表於 2008-12-3 10:06 AM
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