回复:Catch and Match

来源: 2010-06-27 15:43:06 [旧帖] [给我悄悄话] 本文已被阅读:

I agree with you. But I don't know the general way to generate a set of n cards with m_min pictures. Neither can I prove that the suggested m_min is indeed minimum. Do you have any clue, jinjing?