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  1. #include <map>
  2. #include <iostream>
  3. using namespace std;
  4.  
  5. class Person {
  6. public:
  7. 	void ChangeFirstName(int year, const string& name) {
  8. 		mname[year] = name;
  9. 	}
  10.  
  11. 	void ChangeLastName(int year, const string& surname) {
  12. 		msurname[year] = surname;
  13. 	}
  14.  
  15. 	string GetFullName(int year) {
  16. 		string name, surname;
  17. 		for (auto n : mname) {
  18. 			if (n.first <= year)
  19. 				name = n.second;
  20. 			else
  21. 				break;
  22. 		}
  23. 		for (auto n : msurname) {
  24. 			if (n.first <= year)
  25. 				surname = n.second;
  26. 			else
  27. 				break;
  28. 		}
  29. 		if (name.empty() && surname.empty()) return "Incognito";
  30. 		else if (name.empty()) return surname + " with unknown first name";
  31. 		else if (surname.empty()) return name + " with unknown last name";
  32. 		return name + " " + surname;
  33. 	}
  34. private:
  35. 	map<int, string> mname;
  36. 	map<int, string> msurname;
  37. };
  38.  
  39. int main() {
  40.   Person person;
  41.  
  42.   person.ChangeFirstName(1965, "Polina");
  43.   person.ChangeLastName(1967, "Sergeeva");
  44.   for (int year : {1900, 1965, 1990}) {
  45.     cout << person.GetFullName(year) << endl;
  46.   }
  47.  
  48.   person.ChangeFirstName(1970, "Appolinaria");
  49.   for (int year : {1969, 1970}) {
  50.     cout << person.GetFullName(year) << endl;
  51.   }
  52.  
  53.   person.ChangeLastName(1968, "Volkova");
  54.   for (int year : {1969, 1970}) {
  55.     cout << person.GetFullName(year) << endl;
  56.   }
  57.  
  58.   return 0;
  59. }
Success #stdin #stdout 0s 15240KB
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stdout
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Incognito
Polina with unknown last name
Polina Sergeeva
Polina Sergeeva
Appolinaria Sergeeva
Polina Volkova
Appolinaria Volkova
https://ideone.com/jqYOYr
language:
C++14 (clang 8.0)
created:
4 years ago
visibility:
public

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