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  1. #include <stdio.h>
  2. void print_X(int n){
  3. 	for(int i=0;i<n;i++){
  4. 		printf("X");
  5. 	}
  6. 	printf("\n");
  7. }
  8.  
  9. void figure(int n){
  10. 	if(n <= 0) return;
  11.  
  12. 	if(n == 1){
  13. 		printf("X\n");
  14. 	}
  15. 	else{
  16. 		figure(n-1);
  17. 		print_X(n);
  18. 		figure(n-1);
  19. 	}
  20. }
  21.  
  22. int main(){
  23. 	int n;
  24. 	scanf("%d",&n);
  25. 	figure(n);
  26. 	return 0;
  27. }
Success #stdin #stdout 0.01s 5288KB
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X
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X
https://ideone.com/rIZ0aB
language:
C (gcc 8.3)
created:
2 days ago
visibility:
public

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