Напишите пожалуйста программу. Не очень сильно разбираюсь в c++ и именно в структур. Сейчас только все осваиваю

#include <iostream>
#include <string>
#define PUPILS_COUNT 2
#define firstClassOutput 7
#define secondClassOutput 8
#define firstSchool 49
#define secondSchool 90
 
using namespace std;
 
typedef struct Pupil{
    string surname;
    string name;
    int schoolNumber;
    int clas;
};
 
void outputInfo(Pupil A[PUPILS_COUNT], int mode);
 
int main()
{
    Pupil pupilArray[PUPILS_COUNT];
    cout << "Input info about students :\n";
    for (int currentStudent = 0; currentStudent < PUPILS_COUNT; currentStudent++){
        cout << "A[" << currentStudent << "]." << "surname :";
        cin >> pupilArray[currentStudent].surname;
        cout << "A[" << currentStudent << "]." << "name :";
        cin >> pupilArray[currentStudent].name;
        cout << "A[" << currentStudent << "]." << "schoolnumber :";
        cin >> pupilArray[currentStudent].schoolNumber;
        cout << "A[" << currentStudent << "]." << "class :";
        cin >> pupilArray[currentStudent].clas;
    }
    cout << endl;
    cout << "Pupils of 7, 8 forms \n";
    outputInfo(pupilArray, 0);
    cout << "Pupils of 49, 90 schools \n";
    outputInfo(pupilArray, 1);
    system("pause");
    return 0;
}
 
void outputInfo(Pupil A[PUPILS_COUNT], int mode)
{
    if (mode == 0){ //если 0 то выводим учеников 7, 8х классов
    for (int currentStudent = 0; currentStudent < PUPILS_COUNT; currentStudent++)
        if ((A[currentStudent].clas == firstClassOutput) || (A[currentStudent].clas == secondClassOutput)){
            cout << A[currentStudent].surname << endl;
            cout << A[currentStudent].name << endl;
            cout << A[currentStudent].schoolNumber << endl;
            cout << A[currentStudent].clas << endl;
        }
        cout << endl;
    }
    else{ //иначе выводим учеников 49, 90 школ
        for (int currentStudent = 0; currentStudent < PUPILS_COUNT; currentStudent++)
            if ((A[currentStudent].schoolNumber == firstSchool) || (A[currentStudent].schoolNumber == secondSchool)){
            cout << A[currentStudent].surname << endl;
            cout << A[currentStudent].name << endl;
            cout << A[currentStudent].schoolNumber << endl;
            cout << A[currentStudent].clas << endl;
        }
        cout << endl;
    }
}