#30daysofcode #day12

//https://www.hackerrank.com/challenges/30-inheritance/

class Student : Person{
    private int[] testScores;

    /*
    *   Class Constructor
    *
    *   Parameters:
    *   firstName - A string denoting the Person's first name.
    *   lastName - A string denoting the Person's last name.
    *   id - An integer denoting the Person's ID number.
    *   scores - An array of integers denoting the Person's test scores.
    */
    // Write your constructor here
    public Student(string firstName, string lastName, int id, int[] scores){
        this.firstName = firstName;
        this.lastName = lastName;
        this.id = id;
        this.testScores = scores;
    }
    /*
    *   Method Name: Calculate
    *   Return: A character denoting the grade.
    */
    // Write your method here
    public char Calculate(){
      int sum = 0;
      int db = 0;
        foreach(int i in this.testScores){
            sum += i;
            db++;
        }
      int av = sum / db;
      if(av >= 90){
        return 'O';
      }
      else if(av >= 80){
        return 'E';
      }
      else if(av >= 70){
        return 'A';
      }
      else if(av >= 55){
        return 'P';
      }
      else if(av >= 40){
        return 'D';
      }
      else{
        return 'T';
      }
    }
}