int* gradingStudents(int grades_count, int* grades, int* result_count) {
    int *resultGrades = malloc(grades_count * sizeof(int));
    (*result_count) = 0;
    for (int i = 0; i < grades_count; i++) {

        int grade = grades[i], rounding = ((grade + 5) - ((grade + 5) % 5));

        if (grade >= 38 && grade < 100 && ((rounding - grade) < 3)) {
            resultGrades[i] = rounding;
        } else resultGrades[i] = grade;

        (*result_count)++;

        printf("%d\n", resultGrades[i]);
    }
    return resultGrades;
}