三个红色和两个黑色
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最后那个说我不知道我戴什么颜色帽子.
+ F& ^7 J' ]. `2 d( n: A- 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.
8 Q% w, O7 q4 F4 A9 Q: P1 M1 N5.39.217.76TVBNOW 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。( a2 C+ F. }. h& _9 E y
中间那个说我也不知道我戴什么颜色帽子.
3 E5 ?9 B; T6 N5 g3 A- 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.5.39.217.76# Q$ t2 E+ u# ~# K
( Z# i9 m3 u2 O3 LTVBNOW 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。但是第一个说我知道我戴什么颜色帽子.4 w* r& z- u0 z2 |8 g9 U1 |+ M i
- #1 must be wearing RED |
發表於 2008-12-3 10:06 AM
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