why are you include the header file conio.h in program ?

Answer 1

i think if we use clrscr() and getch() they r using conio.h

Answer 2

getch() is outdated. Use _getch() instead.

By the way, conio.h is windows only.

Anyways, getch can be replaced with cin.get() most of the times, which is inside iostream library. And clrscr() which I suppose it clears the screen can be replaced with system("cls") for windows and system("clear") in unix systems.

Answer 3

good

Answer 4

its must to mention conio.h for using getch and clrscr

Answer 5

because you are used this function functionality like clrscr(); getch();