Submission #792399

---

Source Code Expand

import java.util.Scanner;

public class Main {

 public static void main(String[] args) {
  Scanner sccaner = new Scanner(System.in);
  int N = sccaner.nextInt();
  int i=0;
  int j=0;
  double dx[] = new double[N + 1];
  double dy[] = new double[N + 1];
  for (i = 0; i < N; i++) {
   dx[i] = sccaner.nextDouble();
   dy[i] = sccaner.nextDouble();
  }
  double dis = distance(dx[0], dy[0], dx[1], dy[1]);
  double A=0;
  for (i = 0; i < N; i++) {
   for (j = 0; j < N; j++) {
    A=distance(dx[i], dy[i], dx[j], dy[j]);
    if (dis < A) {
     dis = A;
    }
   }
  }
  System.out.println(dis);
 }
 
 private static double distance(double x1, double y1, double x2, double y2) {
  double x = x1-x2;
  double y = y1-y2;
  double Ans=Math.sqrt(x*x + y*y);
  return Ans;
 }
}
//参考:http://d.hatena.ne.jp/baru003/20120616/1339854540

Submission Info

Judge Result