题解 | #成绩排序#

import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    static class Student {
        String name;
        int score;

        public Student(String name, int score) {
            this.name = name;
            this.score = score;
        }
    }

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int n = Integer.parseInt(in.nextLine());
        int order = Integer.parseInt(in.nextLine());
        List<Student> students = new ArrayList<>();
        for (int i = 0; i < n; i++) {
            String[] s = in.nextLine().split(" ");
            Student student = new Student(s[0], Integer.parseInt(s[1]));
            students.add(student);
        }
        if(order == 0) {
            students.sort((a, b) -> b.score - a.score);//升序
        } else {
            students.sort((a, b) -> a.score - b.score);//降序
        }
        for (Student student : students) {
            System.out.println(student.name + " " + student.score);
        }

    }
}