三个红色和两个黑色
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最后那个说我不知道我戴什么颜色帽子.
8 r5 A, V- o' g: ~7 F+ O- 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.; _% C1 I9 [3 O2 Q( Z
5.39.217.77:8898# u5 c, N2 N+ x1 N. f, d7 Q
中间那个说我也不知道我戴什么颜色帽子.
0 w6 D" ^5 f* C" n4 @公仔箱論壇- 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 B( ^& W" _7 |4 m0 o5 s+ j! G
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但是第一个说我知道我戴什么颜色帽子.公仔箱論壇* h4 ?. Q5 m" X! X7 m+ k# W& P9 O
- #1 must be wearing RED |
發表於 2008-12-3 10:06 AM
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