Submission #363174

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Source Code Expand

import java.util.Scanner;

public class Main {
	public static void main(String args[])
	{
		Scanner sc = new Scanner(System.in);
		int num = sc.nextInt();
		double max = 0;
		Point points[] = new Point[num];
		for(int i=0; i<num; i++){
			int x = sc.nextInt();
			int y = sc.nextInt();
			points[i] = new Point(x,y);
		}
		for(int i=0; i<num; i++){
			for(int j=i+1; j<num; j++){
				max = Math.max(max,points[i].calcDistance(points[j]));
			}
		}
		System.out.println(max);
	}
}
class Point{
	private int _x;
	private int _y;
	public Point(){}
	public Point(int x, int y){
		this._x = x;
		this._y = y;
	}
	private double calcDistance(int x, int y){
		return Math.sqrt(Math.pow((this._x - x),2) + Math.pow(this._y - y,2));
	}
	public double calcDistance(Point p){
		return calcDistance(p._x, p._y);
	}
}

Submission Info

Judge Result