三个红色和两个黑色
; }1 @, v/ j" Ztvb now,tvbnow,bttvb
1 m- _5 G# N. P& ~9 V/ T最后那个说我不知道我戴什么颜色帽子.2 k$ j' h4 U4 a# Q
- 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.5 l7 y5 J7 b( I x' w) N
4 e! w* u6 { V2 @% P0 S中间那个说我也不知道我戴什么颜色帽子.! K# @5 R6 U0 l8 Z
- 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.
( R& {6 b/ r7 A9 P0 h1 g6 x公仔箱論壇- p4 s1 R+ k' Y% o6 U
但是第一个说我知道我戴什么颜色帽子.公仔箱論壇7 g. M0 R3 Q8 `" i1 b0 ~
- #1 must be wearing RED |
發表於 2008-12-3 10:06 AM
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