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Dec 10th, 2019
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  1. #include <stdio.h>
  2.  
  3. int main()
  4. {
  5.  
  6. int a[20][20],i,j,ok=1,n,aux;
  7.  
  8. printf("n=");
  9. scanf("%i",&n);
  10. printf("\n");
  11.  
  12. for(i=1;i<=n;++i)
  13. for(j=1;j<=n;++j)
  14. {
  15. printf("a[%d][%d]=",i,j);
  16. scanf("%i",&a[i][j]);
  17. }
  18.  
  19. for(i=2;i<=n;++i)
  20. for(j=1;j<i;++j)
  21. if(a[i][j]==0)ok=0;
  22.  
  23. for(i=2;i<=n;++i)
  24. for(j=1;j<i;++j)
  25. {
  26. aux=a[i][j];
  27. a[i][j]=a[j][i];
  28. a[j][i]=aux;
  29. }
  30.  
  31. if(ok==0)
  32. for(i=1;i<=n;++i)
  33. {
  34. printf("\n");
  35. for(j=1;j<=n;++j)
  36. if(j>=2) printf("%5i",a[i][j]);
  37. else printf("%i",a[i][j]);
  38. }
  39.  
  40.  
  41. }
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