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真是wa得不行了,40天前贡献了4X次WA和TLE,今天又来4个WA,到底应该怎么做?In Reply To:暂时surrender了 Posted by:frkstyc at 2005-03-30 15:06:53 我现在是用对角线来算,假定两个平行四边形的中心是重合的,求出postcard的两条对角线分别在envelope里面能摆放的角度的区间,再根据夹角的关系求区间的交 头疼的题目啊!!!!NEERC的网站里居然下不到解答和数据(最bt的是2003年的居然就可以下载) Followed by:
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