三个红色和两个黑色! {3 A, E; o$ w ^% t( T
+ M- ^9 ?4 ]3 p1 h i0 e% o1 d2 Z) {
最后那个说我不知道我戴什么颜色帽子.
+ y3 }1 d5 `1 I! b- 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.tvb now,tvbnow,bttvb# C8 Q) r. y5 j5 o
3 n9 e7 ?1 e5 I0 |8 l+ n) Btvb now,tvbnow,bttvb中间那个说我也不知道我戴什么颜色帽子.tvb now,tvbnow,bttvb. l* I& T% _5 |& E" r. A" w1 c# n8 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.; B- r6 N5 ]! z/ o+ p6 \
6 Y$ Z3 E: S' O: L. p0 |但是第一个说我知道我戴什么颜色帽子.TVBNOW 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。6 F2 J" `0 Y1 {
- #1 must be wearing RED |
發表於 2008-12-3 10:06 AM
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