#include <string>
#include <iostream>
#include <fstream>

using namespace std;

struct people
{ string name;
  int age;        
  people * next;

  people(string n, int a, people * o)
  { name = n;
    age = a;
    next = o; }

  void printone()
  { cout << name << ", age " << age << "\n"; }
};

int main()
{
  ifstream infile("people.txt");
  if (infile.fail())
  { cout << "Couldn't read people.txt\n";
    exit(1); }

  people * all = NULL;

  while (true)
  { string n;
    int a;
    infile >> n >> a;
    if (infile.fail())
      break;
    cout << "accepted " << n << ", " << a << "\n";
    all = new people(n, a, all); }

  infile.close();

  cout << "The poeple you typed were:\n";
  people * temp = all;
  while (temp != NULL)
  { temp->printone();
    temp = temp->next; }
  cout << "All done\n"; 

  while (true)
  { string query;
    cout << "Eneter a name for search: ";
    cin >> query;
    temp = all;
    int matches = 0;
    while (temp != NULL)
    { if (temp->name == query)
      { cout << query << "'s age is " << temp->age << "\n";
        matches += 1; }
      temp = temp->next; }
    if (matches == 0)
      cout << query << " not found\n";
    else if (matches > 1)
      cout << query << " appears more than once\n"; } }