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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	set<int>a;
  6. 	unordered_set<int>b;
  7. 	a.insert(4);
  8. 	a.insert(5);
  9. 	b.insert(4);
  10. 	b.insert(5);
  11. 	if(a.find(4)!=a.end()){
  12. 		cout<<"YES";
  13. 	}else{
  14. 		cout<<"NO";
  15. 	}
  16. 	map<int,int>m;
  17. 	unordered_map<int,int>m1;
  18. 	m[1]=1;m[2]=2;
  19. 	m1[1]=1;m1[2]=2;
  20. 	if(m.find(4)!=m.end()){
  21. 		cout<<"YES";
  22. 	}else{
  23. 		cout<<"NO";
  24. 	}
  25. 	cout<<m1[2]<<endl;
  26. 	return 0;
  27. }
Success #stdin #stdout 0s 5320KB
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Standard input is empty
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YESNO2
https://ideone.com/J3cygx
language:
C++14 (gcc 8.3)
created:
6 hours ago
visibility:
public

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