三个红色和两个黑色
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9 L7 I1 t0 j' }0 j- U: F公仔箱論壇最后那个说我不知道我戴什么颜色帽子.
% M$ F' _5 t- G9 |( v9 h' D& `& o- 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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- H g% `' J6 g8 E2 ]+ oTVBNOW 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.5.39.217.77- U7 z/ C5 [1 G% h/ z+ E
- 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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" N5 P- p9 z( O7 E) c8 G0 q1 P5.39.217.77但是第一个说我知道我戴什么颜色帽子.
$ `' R- r; G% t8 g B- #1 must be wearing RED |
發表於 2008-12-3 10:06 AM
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