奥数题,很有难度!There are three men A,B,C,each person may be an hon
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奥数题,很有难度!
There are three men A,B,C,each person may be an honest man or a liar.
A. says:"B is a liar
B.says:"A and B are kind person.
QUESTION:who is honest man,and who is a liar?
There are three men A,B,C,each person may be an honest man or a liar.
A. says:"B is a liar
B.says:"A and B are kind person.
QUESTION:who is honest man,and who is a liar?
假设A为诚实人
则B为说谎者,那么A、 C其中一人为坏人,则只能C为说谎者,成立
A好人
B说谎者
C说谎者
假设A为说谎者
那么B为诚实人,则A,C为好人,不成立
则B为说谎者,那么A、 C其中一人为坏人,则只能C为说谎者,成立
A好人
B说谎者
C说谎者
假设A为说谎者
那么B为诚实人,则A,C为好人,不成立
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