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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	int n;
  6. 	cin >> n;
  7. 	for(int i=0;i<n;i++)
  8. 	{
  9. 		for(int j=0;j<n;j++)
  10. 		{
  11. 			if(i>0 && i<n-1 && j>0 && j<n-1)
  12. 			{
  13. 				cout<<"O";
  14. 			}
  15. 			else
  16. 			cout<<"*";
  17. 		}
  18. 		cout<<endl;
  19. 	}
  20. 	return 0;
  21. }
Success #stdin #stdout 0.01s 5440KB
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stdin
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stdout
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******
*OOOO*
*OOOO*
*OOOO*
*OOOO*
******
https://ideone.com/Kr9jgU
language:
C++ (gcc 8.3)
created:
2 years ago
visibility:
public

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