If you are having issues with the compiling of the celsius.c code, look at your indents and line spacing between statements. Here is a working example:
#include <stdio.h>
#define FREEZING_PT 32.0f
#define SCALE_FACTOR (5.0f / 9.0f)
int main(){
float fahrenheit, celsius;
//get the limit of fibonacci series
printf(“Enter Fahrenheit: “);
scanf(“%f”,&fahrenheit);
celsius = (fahrenheit – 32)*5/9;
printf(“Celsius: %f “, celsius);
return 0;
}