C答中了。A和B一定答不到因看不到其他人。 c, c) C# m, q4 }9 m; y4 I
假設C和B是同一顏色, 那D就會立刻知道自己的顏色， : U0 J ^' p! n5.39.217.77而不會過了一會才作答，C發現D不知道答案時就表示 U2 ~, g1 C8 Y0 e, h$ x0 V) Z
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.公仔箱論壇$ I/ {4 q2 ~( y Y0 N& ]) R
That means D is not sure the answer by seeing one white and one black.tvb now,tvbnow,bttvb7 M) I' n: N( V0 D4 y
C 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~~
