ProgBasicsExam12January2019-05Exam

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int students = Integer.parseInt(scanner.nextLine());
        double topStudents = 0;
        double between4and499 = 0;
        double between3and399 = 0;
        double fail = 0;
        double average = 0;

        double topStudentsCount = 0;
        double between4and499count = 0;
        double between3and399count = 0;
        double failCount = 0;

        for (int i = 0; i < students; i++) {
            double grade = Double.parseDouble(scanner.nextLine());
            if (grade >= 5.00) {
                topStudents += grade;
                topStudentsCount++;
            } else if (grade >= 4.00 && grade <= 4.99) {
                between4and499 += grade;
                between4and499count++;
            } else if (grade >= 3.00 && grade <= 3.99) {
                between3and399 += grade;
                between3and399count++;
            } else if (grade <= 3.00) {
                fail += grade;
                failCount++;
            }
        }
        double sum = topStudents + between4and499 + between3and399 + fail;

        System.out.printf("Top students: %.2f%%%n", (topStudentsCount / students) * 100);
        System.out.printf("Between 4.00 and 4.99: %.2f%%%n", (between4and499count / students) * 100);
        System.out.printf("Between 3.00 and 3.99: %.2f%%%n", (between3and399count / students) * 100);
        System.out.printf("Fail: %.2f%%%n", (failCount / students) * 100);
        System.out.printf("Average: %.2f%n", (sum / students));


    }
}