Can i run a program without any header file?

Answer 1

no

Answer 2

no header file is necessary because without it we cannot give input output in program

Answer 3

nope

Answer 4

technically yes you can, but you'll be limited to what you can do. basically just arithmetic and that's it

Answer 5

You can. If you write in assembly I believe.

Answer 6

any program you write gets broken down I to assembly instructions so essentially you would just be recreating the header file if you wrote it in assembly