三个红色和两个黑色
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6 w4 y: Y1 ^# f$ e. E4 I5 T7 @5 H最后那个说我不知道我戴什么颜色帽子.tvb now,tvbnow,bttvb" S F1 w: l _0 b
- 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. o4 R% y5 D6 J \4 c
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中间那个说我也不知道我戴什么颜色帽子.5.39.217.763 B; D& @$ T6 ?
- 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.
# g3 a+ I- y" G Rtvb now,tvbnow,bttvb
( h- f- c: S% D4 H! x- F) ^5.39.217.76但是第一个说我知道我戴什么颜色帽子.
( P8 u- X$ ?9 D% r公仔箱論壇- #1 must be wearing RED |
發表於 2008-12-3 10:06 AM
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