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  1. #include <set>
  2. using namespace std;
  3.  
  4. struct comp
  5. {
  6.     bool operator ()(const pair<int, int>& a, const pair<int, int>& b)
  7.     {
  8.         return a.second < b.second;
  9.     }
  10. };
  11. typedef set<pair<int, int>, comp> S;
  12.  
  13. int main()
  14. {
  15.     S s;
  16.     return 0;
  17. }
Success #stdin #stdout 0s 3464KB
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https://ideone.com/GjT4aD
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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