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  1. #include <algorithm>
  2. #include <functional>
  3. #include <iostream>
  4. #include <tuple>
  5. #include <vector>
  6.  
  7. int main() {
  8. 	std::vector<int> first {5, 4, 3, 2, 1},
  9. 		second {1, 2, 3, 4, 5},
  10. 		third {6, 7, 8, 9, 10};
  11.  
  12. 	typedef std::tuple<int, int, int> Tuple;
  13. 	std::vector<Tuple> tuples;
  14. 	for (auto i = 0u; i < first.size(); ++i) {
  15. 		tuples.push_back(std::make_tuple(first[i], second[i], third[i]));
  16. 	}
  17.  
  18. 	for (const auto& item : tuples) {
  19. 		std::cout << std::get<0>(item) << " "
  20. 			<< std::get<1>(item) << " "
  21. 			<< std::get<2>(item) << std::endl;
  22. 	}
  23. 	std::cout << std::endl;
  24.  
  25. 	std::sort(tuples.begin(), tuples.end(),
  26. 		[](const Tuple& lhs, const Tuple& rhs) {
  27. 			return std::get<0>(lhs) < std::get<0>(rhs);	
  28. 		});
  29.  
  30. 	for (const auto& item : tuples) {
  31. 		std::cout << std::get<0>(item) << " "
  32. 			<< std::get<1>(item) << " "
  33. 			<< std::get<2>(item) << std::endl;
  34. 	}
  35.  
  36. 	return 0;
  37. }
Success #stdin #stdout 0s 3476KB
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stdin
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Standard input is empty
stdout
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5 1 6
4 2 7
3 3 8
2 4 9
1 5 10

1 5 10
2 4 9
3 3 8
4 2 7
5 1 6
https://ideone.com/MawcFX
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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