cpp-work/test1/20220313-3.cpp

#include <iostream>
#include <cmath>

using namespace std;

class CStudent {
public:
    int getId() const;

    void setId(int id);

    int getScore() const;

    void setScore(int score);

    CStudent(int id, string name, int score);

    void setName(const string &name);

    const string &getName() const;

    CStudent(const CStudent &source);

    CStudent();

private:
    int id = 0;
    string name;
    int score = 0;
};

int CStudent::getId() const {
    return id;
}

void CStudent::setId(int id) {
    CStudent::id = id;
}

void CStudent::setName(const string &name) {
    CStudent::name = name;
}

const string &CStudent::getName() const {
    return name;
}

int CStudent::getScore() const {
    return score;
}

void CStudent::setScore(int score) {
    CStudent::score = score;
}

CStudent::CStudent(int id, string name, int score) : id(id), name(name), score(score) {}

CStudent::CStudent() : id(0), name("name"), score(0) {}

CStudent::CStudent(const CStudent &source) {
    id = source.id;
    name = source.name;
    score = source.score;
}

#include <vector>

int main() {
    vector<CStudent> students;

    int studentAmount = 0;
    cout << "Enter the amount of students: ";
    cin >> studentAmount;

    int maxScore = 0;
    for (int i = 0; i < studentAmount; ++i) {
        int id = 0;
        int score = 0;
        string name = "";

        cin >> id >> name >> score;
        CStudent student(id, name, score);
        students.push_back(student);

        if (maxScore < score) {
            maxScore = score;
        }
    }

    for (const CStudent &student: students) {
        if (student.getScore() == maxScore) {
            cout << "id: " << student.getId()
                 << ", name: " << student.getName()
                 << ", score: " << student.getScore() << endl;
        }
    }
}