三个红色和两个黑色
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- q% R2 j, K, T4 z% P/ Q2 Otvb now,tvbnow,bttvb最后那个说我不知道我戴什么颜色帽子.公仔箱論壇* O; U8 [) B9 b* Q2 D- ^- t) L
- 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.
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/ b! ]! L, L0 s公仔箱論壇中间那个说我也不知道我戴什么颜色帽子.: {/ B, J+ d Q' \8 X
- 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 s3 [2 R0 W; m& ^
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但是第一个说我知道我戴什么颜色帽子.
' D) T3 N/ U" n7 z, D4 P公仔箱論壇- #1 must be wearing RED |
發表於 2008-12-3 10:06 AM
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