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  1.  
  2.  
  3. #include <stdio.h>
  4.  
  5. void writeX(int n){
  6.     int i;
  7.     for(i=0;i<n;i++){
  8.         printf("X");
  9.     }
  10.     printf("\n");
  11. }
  12.  
  13. void figure(int n){
  14.     if(n > 1){
  15.         figure(n-1);
  16.         writeX(n);
  17.         figure(n-1);
  18.     } else {
  19.         writeX(n);
  20.     }
  21. }
  22.  
  23. int main(void) {
  24.     int n;
  25.     scanf("%d", &n);
  26.     figure(n);
  27.     return 0;
  28. }
  29.  
Success #stdin #stdout 0.01s 5312KB
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/xGw1lZ
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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