#include <stdio.h>
/* f2c convert from Fahrenheit to Celsius*/

/* To test if it works:*/
/* for some reason it prints nan after each output...I forgot this before I
   turned it in incorrectly, and do not know how to fix it now...*/

float f2c (float fahr);

int
main()
{
  int i;

  for (i = 0; i < 10; ++i)
    printf("%d %f\n", 10 * i, f2c(10 * i));

  return 0;
}

float 
f2c (float fahr)
{
  float c;
  c = (5.0/9.0) * (fahr - 32.0);
  // printf("%.2f = %.2f\n", fahr, c);
}