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  1. #include <iostream>
  2.  
  3. using namespace std;
  4. int count = 1;
  5. string fact(int num, string o="*"){
  6. 	if(count == num) return o;
  7. 	if(num <= 1){
  8. 		return o;
  9. 	}else{
  10. 		string ret;
  11. 		for(int i=0; i<count+1; i++){
  12. 			ret += "*";
  13. 		}
  14. 		count++;
  15. 		return fact(num, o + "\n" + ret + "\n" + o);
  16. 	}
  17. }
  18.  
  19. int main() {
  20. 	cout << fact(4);
  21. 	return 0;
  22. }
Success #stdin #stdout 0.02s 2816KB
comments (?)
stdin 
Standard input is empty
stdout 
*
**
*
***
*
**
*
****
*
**
*
***
*
**
*
https://ideone.com/KyrhS
language:
C++ (gcc 8.3)
created:
14 years ago
visibility:
public

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