三个红色和两个黑色os.tvboxnow.com5 o* g1 E3 ~- }8 p* [% }0 `
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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$ i$ r) J7 w$ m; W
- 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.os.tvboxnow.com* e" u) h* {- d; v5 K" h
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中间那个说我也不知道我戴什么颜色帽子.
: m6 i5 V2 D( Q) pos.tvboxnow.com- 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./ U0 H- C" J7 i, h+ X( ~
! K7 Y. e8 D# e& j1 \4 c; H; Ios.tvboxnow.com但是第一个说我知道我戴什么颜色帽子.& l9 N5 o+ h1 s) |4 l
- #1 must be wearing RED |