Why are we using return instead of using getch?

Question

Confusion

Answer 1

getch() causes the program to pause at that point and wait for the user to press a key before the program proceeds to the return instruction and ends.

Return 0 means you are returning a integer which means at the accepting end the value gotten is 0. 

Note:-
By the way, notice that getch() and <conio.h> are not part of the language standard. Using them makes your program nonportable.

Answer 2

They serve different purposes. Not all programs need user input.

Answer 3

We are using return instead of getch() because if we use <conio.h> u may see that the main function is in this format:

Void main()

But in the other case ur format will be in :

Int main()

So the main method is not void datatype it is int datatype the compiler accepts function with int datatypes so it must be returned......