#include <iostream.h>
#include <iomanip.h>

const int MAXNAME = 30;  // maximum no. of characters in a name
const int MAXTEL = 16;   // maximum no. of characters in a telephone number
const int MAXRECS = 3;   // maximum no. of records

struct TeleType
{
  char name[MAXNAME];
  char phoneNo[MAXTEL];
  TeleType *nextaddr;
};

void populate(TeleType *);   // function prototype needed by main()
void display(TeleType *);    // function prototype needed by main()

int main()
{
  int i;
  TeleType *list, *current; // two pointers to structures of type TeleType

    // get a pointer to the first structure in the list
  list = new TeleType;
  current = list;

    // populate the current structure and create the remaining structures
  for(i = 0; i < MAXRECS - 1; i++)
  {
    populate(current);
    current->nextaddr = new TeleType;
    current = current->nextaddr;
  }

  populate(current);         // populate the last structure
  current->nextaddr = NULL;  // set the last address to a NULL address
  cout << "\nThe list consists of the following records:\n";
  display(list);   // display the structures

  return 0;
}

  // input a name and phone number
void populate(TeleType *record) // record is a pointer to a
{                               // structure of type TeleType
  cout << "Enter a name: ";
  cin.getline(record->name,MAXNAME);
  cout << "Enter the phone number: ";
  cin.getline(record->phoneNo,MAXTEL);

  return;
}

void display(TeleType *contents)  // contents is a pointer to a
{                                 // structure of type TeleType
  while (contents != NULL)   // display till end of linked list
  {
    cout << endl << settiosflags(ios::left)
         << setw(30) << contents->name
         << setw(20) << contents->phoneNo;
    contents = contents->nextaddr;
  }
  cout << endl;

  return;
}