题解 | #成绩排序#

import java.util.*;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        while (in.hasNextLine()) {
            int size = Integer.parseInt(in.nextLine());
            int order = Integer.parseInt(in.nextLine());

            List<String[]> list = new ArrayList<>();
            for (int i = 0; i < size; i++) {
                String[] split = in.nextLine().split(" ");
                list.add(split);
            }
            list.sort((o1, o2) -> {
                if (order == 1)
                    return Integer.parseInt(o1[1]) - Integer.parseInt(o2[1]);
                else
                    return Integer.parseInt(o2[1]) - Integer.parseInt(o1[1]);
            });

            for (String[] strings : list) {
                System.out.println(strings[0] + " " + strings[1]);
            }
        }
    }

}