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  1. #include<stdio.h>
  2. int main()
  3. {
  4.     int n,a,b,c;
  5.     scanf("%d",&n);
  6.     int w=n*2-2;
  7.     for(a=0;a<n;a++)
  8.     {
  9.         for(b=0;b<n-a;b++)
  10.         {
  11.             printf(" ");
  12.         }
  13.         for(c=1;c<=2*a-1;c++)
  14.         {
  15.             printf("%d",c);
  16. if(c==(2*a-1)/2+1)
  17. {
  18. for(;c>0;c--)
  19. {
  20. printf("%d",c);
  21. }
  22. break;
  23. }
  24.         }
  25.         printf("\n");
  26.     }
  27.     for(a=0;a<n;a++)
  28.     {
  29.         for(b=0;b<a;b++)
  30.         {
  31.             printf(" ");
  32.         }
  33.         for(c=1;c<=w-(2*a-1);c++)
  34.         {
  35.             printf("%d",c);
  36. if(c==(w-(2*a-1))/2+1)
  37. {
  38. for(;c>0;c--)
  39. {
  40. printf("%d",c);
  41. }
  42. break;
  43. }
  44.         }
  45.         printf("\n");
  46.     }
  47.     return 0;
  48. }
Success #stdin #stdout 0s 5320KB
comments (?)
stdin
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5
stdout
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    11
   1221
  123321
 12344321
1234554321
 12344321
  123321
   1221
    11
https://ideone.com/HyZC1m
language:
C (clang 8.0)
created:
1 day ago
visibility:
public

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