クラスとオブジェクト

class Student:    def __init__(self, name, score):        self.name = name        self.score = score     def grade(self):        if self.score >= 90:            return "A"        if self.score >= 80:            return "B"        return "C"     def describe(self):        return f"{self.name} {self.score} {self.grade()}"  n = int(input())students = []for _ in range(n):    name, score = input().split()    students.append(Student(name, int(score))) students.sort(key=lambda s: s.score, reverse=True)for s in students:    print(s.describe())

class Student {  constructor(name, score) {    this.name = name;    this.score = score;  }   grade() {    if (this.score >= 90) return "A";    if (this.score >= 80) return "B";    return "C";  }   describe() {    return `${this.name} ${this.score} ${this.grade()}`;  }} const lines = require("fs").readFileSync(0, "utf8").trim().split("\n");const n = Number(lines[0]);const students = [];for (let i = 1; i <= n; i++) {  const [name, score] = lines[i].trim().split(" ");  students.push(new Student(name, Number(score)));} students.sort((a, b) => b.score - a.score);for (const s of students) console.log(s.describe());

import { readFileSync } from "node:fs"; class Student {  readonly name: string;  score: number;   constructor(name: string, score: number) {    this.name = name;    this.score = score;  }   grade(): string {    if (this.score >= 90) return "A";    if (this.score >= 80) return "B";    return "C";  }   describe(): string {    return `${this.name} ${this.score} ${this.grade()}`;  }} const lines: string[] = readFileSync(0, "utf8").trim().split("\n");const n: number = Number(lines[0]);const students: Student[] = [];for (let i = 1; i <= n; i++) {  const [name, score] = lines[i].trim().split(" ");  students.push(new Student(name, Number(score)));} students.sort((a, b) => b.score - a.score);for (const s of students) console.log(s.describe());

import java.util.*; class Student {    private final String name;    private final int score;     Student(String name, int score) {        this.name = name;        this.score = score;    }     int getScore() { return score; }     String grade() {        if (score >= 90) return "A";        if (score >= 80) return "B";        return "C";    }     String describe() { return name + " " + score + " " + grade(); }} public class Main {    public static void main(String[] args) {        Scanner sc = new Scanner(System.in);        int n = sc.nextInt();        List<Student> students = new ArrayList<>();        for (int i = 0; i < n; i++) {            students.add(new Student(sc.next(), sc.nextInt()));        }         students.sort(Comparator.comparingInt(Student::getScore).reversed());        for (Student s : students) System.out.println(s.describe());    }}

using System;using System.Collections.Generic; class Student{    public string Name { get; }    public int Score { get; }     public Student(string name, int score)    {        Name = name;        Score = score;    }     public string Grade()    {        if (Score >= 90) return "A";        if (Score >= 80) return "B";        return "C";    }     public string Describe() => $"{Name} {Score} {Grade()}";} class Program{    static void Main()    {        int n = int.Parse(Console.ReadLine());        var students = new List<Student>();        for (int i = 0; i < n; i++)        {            string[] parts = Console.ReadLine().Split(' ');            students.Add(new Student(parts[0], int.Parse(parts[1])));        }         students.Sort((a, b) => b.Score.CompareTo(a.Score));        foreach (var s in students) Console.WriteLine(s.Describe());    }}

#include <algorithm>#include <iostream>#include <string>#include <utility>#include <vector> class Student {public:    Student(std::string name, int score) : name_(std::move(name)), score_(score) {}     int score() const { return score_; }     std::string grade() const {        if (score_ >= 90) return "A";        if (score_ >= 80) return "B";        return "C";    }     std::string describe() const {        return name_ + " " + std::to_string(score_) + " " + grade();    } private:    std::string name_;    int score_;}; int main() {    int n;    std::cin >> n;    std::vector<Student> students;    for (int i = 0; i < n; i++) {        std::string name;        int score;        std::cin >> name >> score;        students.emplace_back(name, score);    }     std::sort(students.begin(), students.end(),              [](const Student& a, const Student& b) { return a.score() > b.score(); });    for (const Student& s : students) std::cout << s.describe() << '\n';}