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  1. #include <string>
  2. #include <iostream>
  3. #include <vector>
  4. #include <algorithm>
  5.  
  6. using namespace std;
  7.  
  8. struct Book
  9. {
  10.     string Author;
  11.     unsigned short PublicationYear;
  12.  
  13.     bool operator==(const Book& struc) const
  14.     {
  15.         return
  16.             Author == struc.Author &&
  17.             PublicationYear == struc.PublicationYear;
  18.     }
  19.  
  20.     Book(string author, unsigned short publicationYear) :
  21.         Author(author),
  22.         PublicationYear(publicationYear)
  23.     {
  24.     }
  25. };
  26.  
  27. int main()
  28. {
  29.     vector<Book> books =
  30.     {
  31.         Book("Pushkin", 1831),
  32.         Book("Blok", 1902),
  33.         Book("Yevtushenko", 1962)
  34.     };
  35.  
  36.     cout << "Sorting by name" << endl;
  37.     sort(books.begin(), books.end(), [](const Book& a, const Book& b) {
  38.         return a.Author < b.Author;
  39.     });
  40.  
  41.     for (auto& book : books)
  42.         cout << "Author: " << book.Author << ", Year: " << book.PublicationYear << endl;
  43.  
  44.     cout << "Sorting by year" << endl;
  45.     sort(books.begin(), books.end(), [](const Book& a, const Book& b) {
  46.         return a.PublicationYear < b.PublicationYear;
  47.     });
  48.  
  49.     for (auto& book : books)
  50.         cout << "Author: " << book.Author << ", Year: " << book.PublicationYear << endl;
  51.  
  52.     return 0;
  53. }
Success #stdin #stdout 0s 2992KB
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Standard input is empty
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Sorting by name
Author: Blok, Year: 1902
Author: Pushkin, Year: 1831
Author: Yevtushenko, Year: 1962
Sorting by year
Author: Pushkin, Year: 1831
Author: Blok, Year: 1902
Author: Yevtushenko, Year: 1962
https://ideone.com/YOKoH5
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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