1. #include <iostream>
2. #include <string.h>
3.  
4. using namespace std;
5. //class Person definition
6. class Person{
7. string lastname;
8. string name;;
9. int age;
10.  
11. public:
12. Person *next_Person;
13. //function to save personal data
14. void save_Person_data(string add_lastname, string add_name, int add_age);
15. //function to display personal data
16. string display_lastname();
17. string display_name();
18. int    display_age();
19.  
20. };
21.  
22. class List{
23.     Person *first_Person;
24. public:
25.     Person find_Person(string lastanme); //it means that function gives Person - remember it's new type!!
26.     void add_Person (Person *ptr_Person);//function take pointer at that Person
27.  
28. };
29.  
30.  
31. int main(){
32.     //temporary variables using to adding new Person (new object) to class
33.     string temp_lastname;
34.         string temp_name;
35.     int temp_age;
36.     //temporary pointing
37.     Person*temp_ptr;
38.     cout << "Input last name: ";
39.     cin >> temp_lastname;
40.     cout << "Input name: ";
41.     cin >> temp_name;
42.     cout << "Input age: ";
43.     cin >> temp_age;
44.     temp_ptr = new Person; //tymczasowy wskaznik na nowa osobę
45.  
46.     //save person data to temp_ptr - Person object
47.     (*temp_ptr).save_Person_data(temp_lastname, temp_name, temp_age); //here's specific data
48.     delete temp_ptr;
49.  
50.  
51. return 0;}
52. //save_Person_data definition
53. void Person:: save_Person_data(string add_lastname, string add_name, int add_age){
54.  
55. lastname = add_lastname;
56. name = add_name;
57. age = add_age;
58.  
59. }
60.  
61. //function for
62. string Person:: display_lastname(){ return lastname ;}
63. string Person:: display_name(){ return name;}
64. int    Person:: display_age(){ return age;}
65.  
66. //function to find some Person
67.  
68. Person List:: find_Person(string lastname){
69. Person *temp_ptr; //temporary pointer (type Person) that
70. string temp_lastname; //temporary last name to compare with others
71. temp_ptr = first_Person; //set up temporary pointer at first Person
72. }
73.