command-line arguments or parameters to a program

if I have a command-line argument such as:
./KR<alice.txt -x -n course

and if my main function is:
main(int argc, char *argv[])

how many arguments (argc) I have?

I need some support...

You can always try printing the value of argc if you're unsure. In this case, the "<" character will most likely (depending on your shell) redirect the contents of alice.txt to stdin.

I would guess your shell would consume everything to the right of < in processing the redirection (maybe, I didn't try it).

The usual convention would be
./KR -x -n course < alice.txt
That is command line options precede filenames and redirections.