Структура "Студент"

#include <iostream>
#include <cstdlib>
#include <fstream>
using namespace std;
#define n 5
 
struct students{
    string fio;
    int course;
    int group;
    int number;
    float gpa;
};
 
int main(){
    srand(time(NULL));
    students stud[n];
    
    ofstream study("1.txt", ios::out);
    
    for(int i = 0; i < n; i++){
        stud[i].fio = (rand() % ( 'z'-'a' + 1)) +'a'; study << stud[i].fio << " ";
        stud[i].course = rand()% 6 + 1;               study << stud[i].course << " ";
        stud[i].group = rand()% 999 + 1;              study << stud[i].group << " ";
        stud[i].number = rand()% 10000 + 1000;        study << stud[i].number << " ";
        stud[i].gpa = (rand()% 50 + 10)/10;           study << stud[i].gpa << " " << endl;
        cout << stud[i].fio << " " << stud[i].course << " " << stud[i].group << " " << stud[i].number << " " << stud[i].gpa << endl;
    }
    study.close();
    
    float search_gpa = 2.5;
    cout << endl << " gpa > " << search_gpa << endl;
    for(int i = 0; i < n; i++){
        if(stud[i].gpa > search_gpa)
            cout << stud[i].fio << " " << stud[i].course << " " << stud[i].group << " " << stud[i].number << " " << stud[i].gpa << endl;
    }
return 0;
}