int main

[LATCH100]

what does int main with an empty () mean?

[giblit]

It means that it takes no parameters when it is called. http://en.wikipedia.org/wiki/Entry_point

[LATCH100]

is there input in it?

[giblit]

What do you mean?

Do you mean can you pass arguments to the parameters list? Yes, you can int main(int argc, char **argv) then when you invoke the program just add the arguments you wish to use. http://www.cprogramming.com/tutorial/lesson14.html

[LATCH100]

oh ok thanks