2017ACM/ICPC亚洲区沈阳站 C Hdu-6219 Empty Convex Polygons 计算几何最大空凸包

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2017ACM/ICPC亚洲区沈阳站 C Hdu-6219 Empty Convex Polygons 计算几何最大空凸包

题面题意:给你一堆点,求一个最大面积的空凸包,里面没有点. 题解:红书板子,照抄完事,因为题目给的都是整点,所以最后答案一定是.5或者.0结尾,不用对答案多做处理 #include<bits/stdc++.h> #define N 55 using namespace std; struct rec { double x,y; }; rec operator -(rec a,rec b) { rec c; c.x=a.x-b.x; c.y=a.y-b.y; return c; } doubl…

HDU 6227.Rabbits-规律 (2017ACM/ICPC亚洲区沈阳站-重现赛（感谢东北大学）)

Rabbits Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 262144/262144 K (Java/Others)Total Submission(s): 1193 Accepted Submission(s): 628 Problem Description Here N (N ≥ 3) rabbits are playing by the river. They are playing on a number li…

HDU 6225.Little Boxes-大数加法 (2017ACM/ICPC亚洲区沈阳站-重现赛（感谢东北大学）)

整理代码... Little Boxes Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 262144/262144 K (Java/Others)Total Submission(s): 2304 Accepted Submission(s): 818 Problem Description Little boxes on the hillside.Little boxes made of ticky-tacky.Littl…

2017ACM/ICPC亚洲区沈阳站（部分解题报告）

HDU 6225 Little Boxes 题意计算四个整数的和解题思路使用Java大整数 import java.math.BigInteger; import java.util.Scanner; /** * * @author reqaw */ public class Main { /** * @param args the command line arguments */ public static void main(String[] args) { Scanner in =…

2017ACM/ICPC亚洲区沈阳站-重现赛

HDU 6222 Heron and His Triangle 链接:http://acm.hdu.edu.cn/showproblem.php?pid=6222 思路: 打表找规律+大数运算首先我们可以打个表暴力跑出前几个满足题意的T 打表代码: #include<bits/stdc++.h> using namespace std; bool fun(double n) { if(abs(round(n) - n) < 0.000000000000001) ; ; } int ma…

2017ACM/ICPC亚洲区沈阳站-重现赛（感谢东北大学）

Little Boxes Problem Description Little boxes on the hillside.Little boxes made of ticky-tacky.Little boxes.Little boxes.Little boxes all the same.There are a green boxes, and b pink boxes.And c blue boxes and d yellow boxes.And they are all made out…