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Re:做此题,建议先做 1523,和此题思想一样,但是条件加强了

Posted by yy17yy at 2011-02-05 17:16:42 on Problem 2117
In Reply To:做此题,建议先做 1523,和此题思想一样,但是条件加强了 Posted by:wangjunyong at 2009-10-28 16:01:20
感谢此题,,,1523很快就过了,,,这个题纠结了半天,,终于发现自己的板子有点问题,,,神马百度文库,神马百度百科,,,还是得信自己的,,,错了都没地方找去,,,

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