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.tvb now,tvbnow,bttvb" n" \. @5 D) f* ~9 }
- 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.
. p6 U0 v- n+ x0 t- F2 {tvb now,tvbnow,bttvb$ S- q( I1 T* Z. `8 E- _1 i( K
中间那个说我也不知道我戴什么颜色帽子.公仔箱論壇4 L6 m! x v- n0 p( i
- 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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$ S6 b3 ?! I# o) z* v4 e0 S. x3 Rtvb now,tvbnow,bttvb但是第一个说我知道我戴什么颜色帽子.
6 M3 A4 z ^9 p. ^9 n- #1 must be wearing RED |