[백준 11650] 좌표 정렬하기 (java)

https://www.acmicpc.net/problem/11650

11650번: 좌표 정렬하기

 

import java.io.*;
import java.util.*;

public class Main {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
//        StringTokenizer st = new StringTokenizer(br.readLine(), " ");
        int N = Integer.parseInt(br.readLine());

        int[][] ints = new int[N][2];

        for (int i = 0; i < N; i++) {
            String[] strs = br.readLine().split(" ");
            ints[i][0] = Integer.parseInt(strs[0]);
            ints[i][1] = Integer.parseInt(strs[1]);
        }

        Arrays.sort(ints, (a, b) -> {
            if (a[0] == b[0]) {
                return a[1] - b[1];
            } else {
                return a[0] - b[0];
            }
        });

        for (int i = 0; i < N; i++) {
            System.out.println(ints[i][0] + " " + ints[i][1]);
        }
    }
}