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  1. #include <iostream>
  2. using namespace std;
  3. #include<bits/stdc++.h>
  4. int main() {
  5. 	// your code goes here
  6. 	set<int> s;
  7. 	s.insert(1);
  8. 	s.insert(2);
  9. 	if(s.find(2)!=s.end())
  10. 	 s.erase(2);
  11. 	 for(int x : s)
  12. 	 cout << x;
  13. 	return 0;
  14. }
Success #stdin #stdout 0s 15240KB
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https://ideone.com/tYqt4B
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
public

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