C答中了。A和B一定答不到因看不到其他人。" t) J; v P4 c( C ^0 ^9 [; \
假設C和B是同一顏色, 那D就會立刻知道自己的顏色，tvb now,tvbnow,bttvb3 q) z6 V k' }- b* l1 J4 C \" Q! o
而不會過了一會才作答，C發現D不知道答案時就表示 0 M& T3 g! n) c) o$ Y: XC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. ! y/ W; C* t9 t' [* P% |That means D is not sure the answer by seeing one white and one black.4 x+ b. Z- f2 c, Q1 X
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~~
