三个红色和两个黑色
* a. ~4 }+ O2 ^tvb now,tvbnow,bttvb
) o5 P* \6 N* r- Z/ V" @- C最后那个说我不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。$ G, e+ b. a2 e" z+ g+ O) E1 G
- 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.5.39.217.77:8898. Y2 S3 @/ C- H1 i" K6 | ]
' F6 @; R% t4 X3 N& R) Z- S中间那个说我也不知道我戴什么颜色帽子.1 L7 [1 i' C4 m$ d0 \5 a. C m
- 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.
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但是第一个说我知道我戴什么颜色帽子.
) {8 I9 v7 ]/ C/ Y, J# t5 ptvb now,tvbnow,bttvb- #1 must be wearing RED |
發表於 2008-12-3 10:06 AM
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