Your compiler needs to know where to look for the header files. How to configure the ‘include’ directories will be different depending on the compiler you are using.
CIN and COUT are not being recognized because they are defined in iostream.h which your compiler has not been able to include.
i think you want to set envoirnment of your editer window
first: go in editor window
and open option popdown menu
and select directory command
then set path of include directory Example: c:\tc\include and save enviornment changes.