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  1. #include <iostream>
  2. #include <set>
  3.  
  4. using namespace std;
  5.  
  6. int main() {
  7.     set<int> a {1,2,3,4};
  8.     set<int> b {3,4,5,6};
  9.     set<int> u(a);
  10.     u.insert(b.begin(), b.end());
  11.     for (set<int>::iterator i=u.begin() ; i != u.end(); ++i) {
  12.         cout << *i << endl;
  13.     }
  14. 	return 0;
  15. }
Success #stdin #stdout 0s 2988KB
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https://ideone.com/l9Cq99
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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