Submission #2694660

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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 n = sc.nextInt();
        int[][] array = new int[n][2];

        for(int i=0; i<n; i++){
            for(int j=0; j<2; j++){
                array[i][j] = sc.nextInt();
            }
        }

        double maxVal = 0;

        for(int i=0; i<n-1; i++){
            int x = array[i][0];
            int y = array[i][1];

            for(int j=i+1; j<n; j++){
                int targetX = array[j][0];
                int targetY = array[j][1];

                maxVal = Math.max(maxVal, distance(x, y, targetX, targetY));
            }
        }

        System.out.println(maxVal);
    }

    static double distance(int x, int y, int targetX, int targetY){
        return Math.sqrt(Math.pow(targetX - x, 2) + Math.pow(targetY - y, 2));
    }
}

Submission Info

Judge Result