#include "utility.H"
#include <string>

struct Student_Entry {
  char middle;
  string last_name;  // the secondary key
  string first;
  string ID;	    // the primary key
  string student_class;
};

class HashTable {
  public:
    HashTable();          // default constructor with default size 256
    HashTable(int size);  // constructor with size given  
    ~HashTable();         // destructor for the table
    HashTable(const HashTable &original);  // copy constructor
    Error_code insert(const Student_Entry & student);
    Error_code remove(const  string student_id);
    Error_code retrieve_ID(const string student_id, Student_Entry &student) const;
    Error_code retrieve_name(const string student_name, Student_Entry &student) const;
  private:
     // Your declarations go here!
};