P3145 [USACO16OPEN]分割田地Splitting the Field 题目描述 Farmer John's NN cows (3 \leq N \leq 50,0003≤N≤50,000) are all located at distinct positions in his two-dimensional field. FJ wants to enclose all of the cows with a rectangular fence whose sides are pa…
Search GO 说明:输入题号直接进入相应题目,如需搜索含数字的题目,请在关键词前加单引号 Problem ID Title Source AC Submit Y 1000 A+B Problem 10983 18765 Y 1036 [ZJOI2008]树的统计Count 5293 13132 Y 1588 [HNOI2002]营业额统计 5056 13607 1001 [BeiJing2006]狼抓兔子 4526 18386 Y 2002 [Hnoi2010]Bounce 弹飞绵羊 43…
1.Splitting the Field http://usaco.org/index.php?page=viewproblem2&cpid=645 给二维坐标系中的n个点,求ans=用一个矩形覆盖所有点所用矩形面积-用两个矩形覆盖所有点所用两个矩形的最小面积和,而且两个矩形不能重合(边重合也不行) 枚举两个矩形的分割线,也就是把所有点分成两个部分,枚举分割点:先预处理每个点之前和之后的最大,最低高度 #include<algorithm> #include<cstdio>…
http://www.lydsy.com/JudgeOnline/problem.php?id=4581 考虑\(O(n^3)\)暴力. 实际上枚举最靠边的三个点就可以了,最多有12个点. 还是暴力= = #include<cstdio> #include<cstring> #include<algorithm> using namespace std; typedef long long ll; const int N = 50003; int x[N], y[N],…