[java 백준] 실버 5/ 11651번 좌표 정렬하기 2

https://www.acmicpc.net/problem/11651

11651번: 좌표 정렬하기 2

import java.util.Arrays;
import java.util.Comparator;
import java.util.Scanner;
 
public class Main {
 
    public static int[][] arr;
    public static int n;
 
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        arr = new int[n][2];
 
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < 2; j++) {
                arr[i][j] = sc.nextInt();
            }
 
        }
 
        Arrays.sort(arr, new Comparator<int[]>() {
            @Override
            public int compare(int[] a, int[] b) {
                if (a[1] == b[1]) {
                    return Integer.compare(a[0], b[0]);
 
                }
                return Integer.compare(a[1], b[1]);
            }
        });
 
        for (int i = 0; i < n; i++) {
            System.out.println(arr[i][0] + " " + arr[i][1]);
        }
    }
 
}