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a guest Jun 18th, 2019 59 Never
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  1. #include <stdio.h>
  2.  
  3.  
  4. int loopnum(int n);
  5.  
  6. int
  7. main(void)
  8. {
  9.     int num;
  10.     int sum = 0;
  11.     int d = loopnum(num);
  12.  
  13.     printf("Enter a number:n");
  14.     scanf("%d", &num);
  15.  
  16.     while(loopnum(num) > 0)
  17.     {
  18.             printf("d = %d", d);
  19.             printf(",sum = %dn",sum);
  20.  
  21.     }
  22.  
  23.  
  24.     if(num % 9 == 0)
  25.     {
  26.     printf("n = %d is divisible by 9n", num);
  27.     }
  28.     else
  29.     {
  30.     printf("n = %d is not divisible by 9n", num);
  31.     }
  32.     return 0;
  33. }
  34.  
  35.  int
  36.  loopnum(int n)
  37. {
  38.  
  39.     n  = n % 10;
  40.     n = n / 10;
  41.  
  42.     return n;
  43.  
  44. }
  45.  
  46.  
  47.  Enter a number:
  48.  9
  49.  n = 9 is divisible by 9
  50.  
  51.  The result of this code is suppose to output d = "the digit" ,sum =
  52.  "digit + sum" and n = "digit" is divisible by 9. for example if I
  53.  input 9. The output would be d = 9, sum = 9.
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