Fibonacci Code in C:

Outputs ("prints") the Fibonacci Sequence to any arbitrated number of places, granted that that number (the input) is an integer between 1 and 46. (Inputs 47 and over produce an Overflow for every other place starting with 47.) The Default (prior to input) is twenty places.

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#include <stdio.h>

int main(void)
{
 /*     add more variable declarations */
 /* --> between here */
 int a, b, c, d;
 /* <-- and here */
 a = 0;
 b = 1;
 c = 0;

 int count;

 count = 20;
 /*     add code to print the first “count” Fibonacci numbers */
 /*     with the proper format */
 /* --> between here */
 while (count >= 0) {
  if (count % 2 == 0) {

   d = 1;

  }

  if (count % 2 != 0) {

   d = 0;

  }

  while (count > 0 && d == 0) {

   count = count - 1;

   if (count % 2 == 0) {

    if (count != 0) {
     printf("%d, ", a);

     c = a;
     b = a + b;
    }

    else {
     printf("%d.\n", a);
     scanf("%d", &count);

     a = 0;
     b = 1;
     c = 0;
     d = 1;
    }
   }

   else if (count % 2 != 0) {

    if (count != 0) {
     printf("%d, ", b);

     a = b + c;
    }
   }

  }
  while (count > 0 && d == 1) {

   count = count - 1;

   if (count % 2 != 0) {

    printf("%d, ", a);

    c = a;
    b = a + b;

   }

   else if (count % 2 == 0) {

    if (count != 0) {
     printf("%d, ", b);

     a = b + c;
    }
    else {
     printf("%d.\n", b);
     scanf("%d", &count);

     a = 0;
     b = 1;
     c = 0;
     d = 0;
    }
   }
  }
 }

 /* <-- and here */

 while (1) getchar();
 return 0;
}

Dm.A.A.