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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	// your code goes here
  6. 	int t;
  7. 	cin>>t;
  8. 	while(t--)
  9. 	{
  10. 		string s;
  11. 		char c='#';
  12. 		cin>>s;
  13. 		for(int i=0;i<s.length();i++)
  14. 		{
  15. 			for(int j=i+1;j<s.length();j++)
  16. 			{
  17. 				if(s[i]==s[j])
  18. 				{
  19. 					c=s[i];
  20. 					break;
  21. 				}
  22. 			}
  23. 		}
  24. 		if(c=='#')
  25. 		{
  26. 			cout<<'.'<<"\n";
  27. 		}
  28. 		else
  29. 		{
  30. 			cout<<c<<"\n";
  31. 		}
  32. 	}
  33. 	return 0;
  34. }
Success #stdin #stdout 0.01s 5440KB
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datastructures
algorithms
smartinterviews
hackerrank
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https://ideone.com/IP5W4N
language:
C++14 (gcc 8.3)
created:
2 years ago
visibility:
public

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