三个红色和两个黑色1 ~; `+ t! c- _/ ~8 a; f8 Z3 r
4 r0 l4 B6 v# X p* J最后那个说我不知道我戴什么颜色帽子.8 M/ r, B9 l0 x, z) Z. i7 c
- 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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/ R7 [& w2 L8 e- I4 P5 mTVBNOW 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。中间那个说我也不知道我戴什么颜色帽子.* f9 p" e2 Z; p# i# `4 s0 P
- 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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4 o) b, O+ l# @; v+ l+ i* n但是第一个说我知道我戴什么颜色帽子.3 n. W( u+ h6 h8 q, ~. d/ [
- #1 must be wearing RED |
發表於 2008-12-3 10:06 AM
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