Compiling a sample c file takes forever on unix

Hi,

I have a sample c file - test.c and I am compiling it on unix
and it is take forever and still working on it to just compile.

The command I typed in is:

% cc test.c

and the compiler I use is: /vol/opt/SUNWspro.new/bin/cc
and the file is:

main()
   {
      float   x, y, z, sum, avg;
                           
      printf("Please enter 3 numbers: ");
      scanf("%f %f %f", &x, &y, &z);
      sum = x + y + z;
      avg = sum / 3.0;
      printf("The average of the three numbers is: %f\n",avg);
    }

Why isn't it just compile and give me a.out?

Thanks,

Also any good and free c compiler on Windows 2000/XP?

Jennifer