In FORTRAN, global variables are created using a COMMON statement, but it is not required that the global variables have the same name in each subroutine or function. Thus, in the code variable N in...

In FORTRAN, global variables are created using a COMMON statement, but it is not required that the global variables have the same name in each subroutine or function. Thus, in the code

variable N in function F and variable M in subroutine S share the same memory, so they behave as different names for the same global variable. Compare this method of creating global variables to that of C. How is it better? How is it worse?