include directive. 17. A preprocessor directive is terminated by the end of the line it occupies but if necessary it can
be continued onto one or more lines by ending all but the last line with backslashes.
II. Main Function Here starts the executable portion of your program (i.e., the code for which object and .exe files are
generated). Main is a special C function.
The program execution starts from main and there can be only one main in every program . The
int preceding this keyword main says that the function main
(here) will return an integer value to the operating system. The keyword void shows that the function
main has no parameters (i.e., the parameter list is void). Following the main are two braces that show
that main is a function.