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  1. #include <stdio.h>
  2. void writeX(int n) 
  3. {
  4. 	int i;
  5. 	for( i = 0; i < n; i++ ) 
  6. 	{
  7. 		printf("X");
  8. 	}
  9. 	printf("\n");
  10. }
  11. void figure(int n) 
  12. {
  13. 	if(n == 1)
  14. 	{
  15. 		writeX(n);
  16. 	}
  17. 	else
  18. 	{
  19. 		figure(n-1);
  20. 		writeX(n);
  21. 		figure(n-1);
  22. 	}
  23. }
  24. int main(void) 
  25. {
  26. 	int n;
  27. 	scanf("%d", &n);
  28. 	figure(n);
  29. 	return 0;
  30. }
  31.  
Success #stdin #stdout 0.01s 5316KB
comments (?)
stdin
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4
stdout
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X
XX
X
XXX
X
XX
X
XXXX
X
XX
X
XXX
X
XX
X
https://ideone.com/a5NMaV
language:
C (gcc 8.3)
created:
9 hours ago
visibility:
public

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