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Feb 10th, 2016
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  1. #include <stdio.h>
  2.  
  3. void entrada(double *numPtr);
  4. void troca(double *numPtr);
  5. void imprime(double *numPtr);
  6.  
  7. int main()
  8. {
  9. double num[1];
  10. double *numPtr;
  11.  
  12. numPtr = num;
  13.  
  14. entrada(&numPtr);
  15. troca(&numPtr);
  16. imprime(&numPtr);
  17.  
  18. return 0;
  19. }
  20.  
  21. void entrada(double *numPtr)
  22. {
  23. int i;
  24.  
  25. for(i = 0; i < 2; i++)
  26. {
  27. printf("\n Insira o %do numero: ", (i + 1));
  28. scanf("%lf", (numPtr + i));
  29. }
  30. }
  31.  
  32. void troca(double *numPtr)
  33. {
  34. double temp;
  35.  
  36. (*numPtr) = temp;
  37.  
  38. (*numPtr) = (*numPtr + 1);
  39.  
  40. (*numPtr + 1) = temp;
  41. }
  42.  
  43. void imprime(double *numPtr)
  44. {
  45. int i;
  46.  
  47. for(i = 0; i < 2; i++)
  48. {
  49. printf("\n O %d numero eh: %.2lf", (i + 1), (*numPtr + i));
  50. }
  51. printf("\n\n");
  52. }
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