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  1. #include <iostream>
  2. #include <set>
  3. #define st std::set<int>
  4.  
  5. st union_(const std::set<int> &s, const std::set<int> &t);
  6.  
  7. int main() {
  8. 	st	a{5, 7, 3, 9, 10, 3},
  9. 		b{10, 5, 12, 49, 0};
  10. 	std::set<int> c = union_(a, b);
  11. 	// std::cout << item << " ";
  12. 	for(auto& item:c) std::cout << item << " ";
  13.  
  14. }
  15.  
  16.     st union_(const std::set<int> &s, const std::set<int> &t) {
  17.     st res(t);
  18.     return res;
  19.  }
Success #stdin #stdout 0.01s 5288KB
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stdin
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Standard input is empty
stdout
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0 5 10 12 49
https://ideone.com/yCNhv1
language:
C++ (gcc 8.3)
created:
4 hours ago
visibility:
public

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