// CS2310 Project 2 Specification file

#define MAX_NUM_STUDENTS 15
#define MAX_NAME_LENGTH 15
#define LEN_SSN 10

enum letRank {Freshment, Sofomore, Junior, Senior};
enum letGrade {A, B, C, D, F};

struct stuRecord {
  char fstName[MAX_NAME_LENGTH];
  char lstName[MAX_NAME_LENGTH];
  char ssn[LEN_SSN];
  letRank  rank;
  char letGrade;
  int  grades[3];
};

class SortedStuRecords {
public:
  void InsertRecord(stuRecord& newRecord);
    // Precondition:
    //   A new student record is passed in by newRecord. The student
    //	 records in the list are sorted in alphabetical order by 
    //	 last names.
    // Postcondition:
    //   The new record is inserted into the list at the proper 
	//	 position. The resulting list is still ordered. length
    //   variable is incremented.
  void CalLetGrade();
    // Postcondition:
    //   Go through the array, calculate the letter grade for each student
    //   by averaging the three numerical grades.
  void PrintByGrades() const;
    // Postcondition:
    //   Print out student records by the letter grades, with the records
    //   of 'A' first, 'B' the second, ..., 'F' the last.
  void PrintByRanks() const;
    // Postcondition:
    //   Print out student records by the ranks, with the records
    //   of 'Freshmen' first, 'sophomore' the second, 'junior' the
	//   third, and 'senior' the last.
  SortedStuRecords();
    // Default constructor: Zero the length of the array.

private:
  int length; // Keep track the number of students.
  stuRecord data[MAX_NUM_STUDENTS];
};