jakol oten

int main() {
    int choice;
    int i;
    struct studentRec student;
    gotoxy(34,34);
    do {
        system("cls");
    	drawDBox(12,3,65,17);

        gotoxy(10, 5);
        printf("I.D. number : ");
        scanf("%ld", &student.idnumber);
        clearInputBuffer();


        gotoxy(10, 6);
        printf("N A M E : ");
        scanf("%s %s %s", student.students_name.firstName, student.students_name.middleName, student.students_name.lastName);
        clearInputBuffer();


        gotoxy(10, 7);
        printf("GENDER[M/F] : ");
        scanf(" %c", &student.gender);
        clearInputBuffer();


        gotoxy(10, 8);
        printf("BIRTHDATE : ");
        scanf("%s %d %ld", student.birthdate.month, &student.birthdate.day, &student.birthdate.year);
        clearInputBuffer();


        gotoxy(10, 9);
        printf("COURSE & YR : ");
        fgets(student.courseYear, MAX_COURSE_LENGTH, stdin);

        student.courseYear[strcspn(student.courseYear, "\n")] = 0;


        gotoxy(10, 10);
        printf("Total no. of subjects: ");
        scanf("%d", &student.numberOfSubjectsEnrolled);
        clearInputBuffer();


        for (i = 0; i < student.numberOfSubjectsEnrolled; i++) {
            gotoxy(10, 11 + i);
            printf("SUBJECT %d: ", i + 1);
            fgets(student.subjects[i].subject, MAX_NAME_LENGTH, stdin);
            student.subjects[i].subject[strcspn(student.subjects[i].subject, "\n")] = 0;

            gotoxy(30, 11 + i);
            printf("UNIT %d: ", i + 1);
            scanf("%f", &student.subjects[i].unit_per_subject);
            clearInputBuffer();

            gotoxy(50, 11 + i);
            printf("GRADE %d: ", i + 1);
            scanf("%f", &student.subjects[i].finalGrade_per_subject);
            clearInputBuffer();
        }


        float sumProduct = 0;
        float total_units = 0;
        for (i = 0; i < student.numberOfSubjectsEnrolled; i++) {
            sumProduct += (student.subjects[i].unit_per_subject * student.subjects[i].finalGrade_per_subject);
            total_units += student.subjects[i].unit_per_subject;
        }
        float gpa = sumProduct / total_units;


        gotoxy(10, 12 + student.numberOfSubjectsEnrolled);
        printf("GPA : %.2f\n", gpa);


        gotoxy(10, 14 + student.numberOfSubjectsEnrolled);
        printf("Press 1 to continue or 0 to exit... ");
        scanf("%d", &choice);

    } while (choice == 1);

    return 0;
}