三个红色和两个黑色公仔箱論壇2 c6 m: q0 O4 ~2 M
8 n6 O5 f& i$ T0 w/ s9 f( B5.39.217.76最后那个说我不知道我戴什么颜色帽子.
: J+ r- ^* C6 l, s4 n8 h2 G0 Z/ L公仔箱論壇- 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.tvb now,tvbnow,bttvb% k$ d v; @+ j h4 C, ^
# P# D+ F w8 K P7 W0 Q中间那个说我也不知道我戴什么颜色帽子.
" B W8 \6 h4 C0 r- 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.tvb now,tvbnow,bttvb8 `) ?0 C8 o( V' R3 y
5.39.217.76+ L7 t8 l$ t* [+ |+ K! p; g) v
但是第一个说我知道我戴什么颜色帽子./ E& f% t+ v6 T) W, U a$ F
- #1 must be wearing RED |
發表於 2008-12-3 10:06 AM
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