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  1. #include <algorithm>
  2. #include <iostream>
  3. #include <vector>
  4.  
  5. struct date
  6. {
  7.     int year;
  8.     int month;
  9.     int day;
  10. };
  11.  
  12. std::istream& operator>>(std::istream& in, date& d)
  13. {
  14.     return in >> d.year >> d.month >> d.day;
  15. }
  16.  
  17. std::ostream& operator<<(std::ostream& out,  const date& d)
  18. {
  19.     return out << d.year << ' ' << d.month << ' ' << d.day;
  20. }
  21.  
  22. int main()
  23. {
  24.     std::vector<date> data;
  25.     date temp;
  26.     while(std::cin >> temp)
  27.         data.push_back(temp);
  28.     for(const auto d: data)
  29.         std::cout << d << '\n';
  30.     std::cout << '\n';
  31.     //Sort by year
  32.     std::sort(data.begin(), data.end(), [](const date& lhs, const date& rhs)
  33.                                         { return lhs.year < rhs.year; });
  34.     for(const auto d: data)
  35.         std::cout << d << '\n';
  36. }
Success #stdin #stdout 0s 3420KB
comments (?)
stdin
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2010 12 25
2011 01 15
2010 11 01
stdout
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2010 12 25
2011 1 15
2010 11 1

2010 12 25
2010 11 1
2011 1 15
https://ideone.com/QAIqrL
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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