The question is algebraic in nature. So we need an algebraic sol

来源: tieddog 于 2014-02-03 13:55:59 [] [旧帖] [给我悄悄话] 阅读数 : (106 bytes)

It is not easy to see the relation between the two questions if they are not posted here at the same time.

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• 是的，6700417的解法很妙 -怪哉- ♂ 给 怪哉 发送悄悄话 怪哉 的博客首页 (0 bytes) () 02/03/2014 postreply 14:10:12

• 6700417的解法也属于构造型的解答 -怪哉- ♂ 给 怪哉 发送悄悄话 怪哉 的博客首页 (0 bytes) () 02/03/2014 postreply 14:11:03

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