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  1. #include<stdio.h>
  2. int main()
  3. {
  4.     int x,a,line,space,star;
  5.     scanf("%d",&x);
  6.     if(x%2==1)
  7.     {
  8.       for(line=1;line<=(x+1)/2;line++){
  9.         for(space=(x/2)-line;space>=0;space--){
  10.             printf(" ");
  11.         }
  12.         for(star=1;star<=line;star++){
  13.             printf("* ");
  14.         }
  15.         printf("\n");
  16.       }
  17.       for(line=1;line<=(x-1)/2;line++){
  18.         for(space=1;space<=line;space++){
  19.             printf(" ");
  20.         }
  21.         for(star=(x-1)/2-(line-1);star>=1;star--){
  22.             printf("* ");
  23.         }
  24.         printf("\n");
  25.       }
  26.     }
  27.     else
  28.     {
  29.        for(line=1;line<=x/2;line++){
  30.          for(space=(x/2)-line;space>0;space--){
  31.             printf(" ");
  32.          }
  33.          for(star=1;star<=line;star++){
  34.             printf("* ");
  35.          }
  36.          printf("\n");
  37.        }
  38.        for(line=1;line<=x/2;line++){
  39.          for(space=1;space<line;space++){
  40.             printf(" ");
  41.          }
  42.          for(star=(x/2)-(line-1);star>=1;star--){
  43.             printf("* ");
  44.          }
  45.          printf("\n");
  46.        }
  47.     }
  48.     return 0;
  49. }
Success #stdin #stdout 0s 5320KB
comments (?)
stdin 
23
stdout 
           * 
          * * 
         * * * 
        * * * * 
       * * * * * 
      * * * * * * 
     * * * * * * * 
    * * * * * * * * 
   * * * * * * * * * 
  * * * * * * * * * * 
 * * * * * * * * * * * 
* * * * * * * * * * * * 
 * * * * * * * * * * * 
  * * * * * * * * * * 
   * * * * * * * * * 
    * * * * * * * * 
     * * * * * * * 
      * * * * * * 
       * * * * * 
        * * * * 
         * * * 
          * * 
           *
https://ideone.com/DMBT6P
language:
C (gcc 8.3)
created:
9 days ago
visibility:
public

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