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  1. #include <stdio.h>
  2.  
  3. void writeX(int n) {
  4.      int i;
  5.  
  6.      for( i = 0; i < n; i++ ) {
  7.           printf("X");
  8.      }
  9.      printf("\n");
  10. }
  11.  
  12. void figure(int n) {
  13.     if(n==0)
  14.        return;
  15.     else{
  16.        figure(n-1);
  17.        writeX(n);
  18.        figure(n-1);
  19.     }
  20. }
  21.  
  22.  
  23. int main(void) {
  24.     int n;
  25.  
  26.     scanf("%d", &n);
  27.     figure(n);
  28.     return 0;
  29. }
Success #stdin #stdout 0s 5320KB
comments (?)
stdin
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3
stdout
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X
XX
X
XXX
X
XX
X
https://ideone.com/ZE7FBl
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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