C答中了。A和B一定答不到因看不到其他人。公仔箱論壇' r+ Y4 a7 f# `$ z. w. i& r
假設C和B是同一顏色, 那D就會立刻知道自己的顏色，公仔箱論壇- H, b% W" F! t
而不會過了一會才作答，C發現D不知道答案時就表示tvb now,tvbnow,bttvb% h5 b! @4 Z0 U- o0 j. U9 M( S
C和B是不同顏色，那麼C只要答和B相反的顏色就對了。
C knows the answer by deducing D is not yelling out the answer. 5 A" W" B( C; m! f: Y4 ]" Y6 s3 m# H3 Q# W' c公仔箱論壇That means D is not sure the answer by seeing one white and one black. \' D4 H3 j" }) d0 x3 \# x4 j1 z. ZC saw B is wearing the white, hence he is wearing the black
C, because he saw B's hat is white and he knows D can see the color of B's and his hat. If B and his hat has the same color, D would speak out. But D kept silent, so C knows that his hat's color must be different.
發表於 2013-2-10 08:55 PM
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好難哦~~
