三个红色和两个黑色
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8 Q/ V! T; c: z# N. q: l8 d% N最后那个说我不知道我戴什么颜色帽子.
+ d- F9 d: J0 f4 g, P公仔箱論壇- 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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. E& \9 z% m/ R$ PTVBNOW 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.& o; ]* R/ K3 i+ Y
- 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.
, s+ n3 a+ t. k+ h; { n+ w; t0 ]公仔箱論壇
8 F1 I! J; Z- \* \7 v; q但是第一个说我知道我戴什么颜色帽子.
7 r9 b/ G! P3 H5.39.217.77- #1 must be wearing RED |
發表於 2008-12-3 10:06 AM
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