Answer Posted / karthikamburu

# is the main part of the 'c'program.it is used to define
the header file it means that it is used to declare that
header filesfor ex:"#include<stdio.h>".here it is used for
standarad for declaring printf and scanf()
functions.here "#" is the main part.
"#include<conio.h>"
it is used for clrscr() and getch()functions.here
also "#"is the main header file.actually it is preprocessor.

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