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.5.39.217.76 g1 j% y% |/ X( y; {/ T6 b$ |3 n
- 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.( I2 B& o! t* x; c( u/ m" t) b; A7 d
' ]6 S1 j! m. {! M, X& Z- Z5.39.217.76中间那个说我也不知道我戴什么颜色帽子.公仔箱論壇4 e. X# w, T6 e2 M/ ^0 H
- 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.tvb now,tvbnow,bttvb, {# v" r8 W% K
- #1 must be wearing RED |