三个红色和两个黑色
1 b2 y) \! n! Ptvb now,tvbnow,bttvbwww2.tvboxnow.com0 R0 V+ ~- Y* f6 {3 v
最后那个说我不知道我戴什么颜色帽子.
& F! }7 o0 ~$ `& J2 Nwww2.tvboxnow.com- 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.
1 G' p) k. q U5 N2 jtvb now,tvbnow,bttvbtvb now,tvbnow,bttvb, v9 d) [# m5 Q
中间那个说我也不知道我戴什么颜色帽子.
" G; K) F5 M' ^# b1 g4 Ewww2.tvboxnow.com- 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.tvb now,tvbnow,bttvb& D9 s) G! u# H! g" D* \
tvb now,tvbnow,bttvb. g* M$ ^! ~' ^4 k# {
但是第一个说我知道我戴什么颜色帽子.www2.tvboxnow.com+ w4 Z8 X: a1 l+ ?8 L" H
- #1 must be wearing RED |
發表於 2008-12-3 10:06 AM
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