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  1. #include <iostream>
  2.  
  3. void out_square(std::ostream& _o, int num, int cnt){
  4. 	bool chk;
  5. 	int  len = num - 1;
  6. 	for(int i = 0; i < num; ++i){
  7. 		chk = (i < cnt || i > len-cnt);
  8. 		for(int j = 0; j < num; ++j){
  9. 			if((j < cnt) || (j > len-cnt) || chk)
  10. 				_o << '*';
  11. 			else
  12. 				_o << ' ';
  13. 		}
  14. 		_o << std::endl;
  15. 	}
  16. 	_o.flush();
  17. }
  18.  
  19.  
  20. int main(void){
  21. 	out_square(std::cout, 12, 2);
  22. 	return 0;
  23. }
Success #stdin #stdout 0s 3140KB
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stdin
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Standard input is empty
stdout
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************
************
**        **
**        **
**        **
**        **
**        **
**        **
**        **
**        **
************
************
https://ideone.com/teCK7k
language:
C++ (gcc 8.3)
created:
8 years ago
visibility:
public

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