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  1. #include <iostream>
  2. #include <set>
  3. using namespace std;
  4.  
  5. int main() {
  6. 	// your code goes here
  7. 	int n,k;
  8. 	set<int >s;
  9. 	cin>>n;
  10. 	for(int i=0;i<n;i++)
  11. 	{
  12. 		cin>>k;
  13. 		s.insert(k);
  14. 	}
  15. 	for(int i=0;i<n-1;i++)
  16. 	{
  17. 		cin>>k;
  18. 		s.erase(k);
  19. 	}
  20. 	if(s.begin()==s.end())
  21. 		cout<<"No Difference"<<"\n";
  22. 	else
  23. 		cout<<*s.begin()<<"\n";
  24. 	return 0;
  25. }
Success #stdin #stdout 0s 15232KB
comments (?)
stdin
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5
1 2 3 4 4
1 2 3 4
stdout
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No Difference
https://ideone.com/Aft0qA
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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