三个红色和两个黑色tvb now,tvbnow,bttvb- T! ] A3 ?. ]! q
公仔箱論壇! N o; ^) t, G) h2 N4 K( @
最后那个说我不知道我戴什么颜色帽子.
& T' f* a5 q- F+ 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.
+ p8 w, M; o c4 L! w! Utvb now,tvbnow,bttvb- _& ?% o) F9 p5 A' p' J" v
中间那个说我也不知道我戴什么颜色帽子.5.39.217.769 Z5 z7 D0 l: L% ?
- 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- v" f# s* V! y& @1 ^# @
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但是第一个说我知道我戴什么颜色帽子.
/ e" i+ u2 o# J, { S2 A3 n- #1 must be wearing RED |
發表於 2008-12-3 10:06 AM
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