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  1. #include <set>
  2. #include <map>
  3. #include <utility>
  4. #include <iostream>
  5.  
  6. using namespace std;
  7.  
  8. int main() {
  9.   pair<int, int> p1(1, 1);
  10.   pair<int, int> p2(1, 2);
  11.   set< pair<int, int> > s;
  12.   s.insert(p1);
  13.   s.insert(p2);
  14.   map<int, int> m;
  15.   m.insert(p1);
  16.   m.insert(p2);
  17.   cout << "Set size = " << s.size() << "\nMap size = " << m.size() << endl;
  18. }
Success #stdin #stdout 0s 3476KB
comments (?)
stdin
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Standard input is empty
stdout
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Set size = 2
Map size = 1
https://ideone.com/cZ8Vjr
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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