三个红色和两个黑色
; `2 y2 W5 C2 O5 d+ e5.39.217.760 s% }, F; d' C$ l
最后那个说我不知道我戴什么颜色帽子.
1 \+ V) ?0 {3 I4 ?- L公仔箱論壇- 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.5.39.217.76( |- J* U* W J+ ?- S( w, R& k! a0 U
/ |# Q$ p$ O% i5.39.217.76中间那个说我也不知道我戴什么颜色帽子.
/ M7 Z# J! l* R) N2 t5.39.217.76- 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.
2 x7 {/ d @: |tvb now,tvbnow,bttvb5.39.217.76/ @( k* n" n0 \7 I( F+ z
但是第一个说我知道我戴什么颜色帽子.
5 C: X- G- b4 m8 T' I; J( M) L* P- #1 must be wearing RED |
發表於 2008-12-3 10:06 AM
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