Segments Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 10921 Accepted: 3422 Description Given n segments in the two dimensional space, write a program, which determines if there exists a line such that after projecting these segments
计算直线的交点数 Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 9357 Accepted Submission(s): 4226 Problem Description 平面上有n条直线,且无三线共点,问这些直线能有多少种不同交点数. 比如,如果n=2,则可能的交点数量为0(平行)或者1(不平行). Input 输入数据包
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1466 计算直线的交点数 Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 8799 Accepted Submission(s): 3973 Problem Description 平面上有n条直线,且无三线共点,问这些直线能有多少种不同
Java计算n的二进制位上有几个1,分别在什么位置 public List<Integer> getBinOneCount(int n){ List<Integer> ar = new ArrayList<>(); int index=0; while(n>0){ int x=n&1<<index; if(x!=0){ ar.add(index+1);
使用java计算数组方差和标准差 觉得有用的话,欢迎一起讨论相互学习~Follow Me 首先给出方差和标准差的计算公式 代码 public class Cal_sta { double Sum(double[] data) { double sum = 0; for (int i = 0; i < data.length; i++) sum = sum + data[i]; return sum; } double Mean(double[] data) { double mean = 0;
Java 计算加几个月之后的时间 public static Date getAfterMonth(String inputDate,int number) { Calendar c = Calendar.getInstance();//获得一个日历的实例 SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); Date date = null; try{ date = sdf.parse(inputDate);//初始日期
import java.util.Scanner; public class Zuheshu { //计算m阶乘 public static int Fun(int m){ int sum=0; if( m < 0 ) System.out.println("input error,please input integer(bigger than 1):"); else if( m == 1 || m == 0 ) return 1; else