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可以 nlogn

Posted by Isun at 2008-03-16 02:42:40 on Problem 3525
In Reply To:请问这题用增量法行吗?把n边型向内平移一个最小长度dn,使得n边形恰好变成n-1变形; Posted by:Little_Tiger at 2008-03-15 12:23:58


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