why do we need to put return 0;

Question

because i think that the program will run without return 0; am i right?

Answer 1

I think it might run without returning 0 but sometimes you want to know from outside the program that it ran without any errors. I have seen cases where a non-zero error code is sometimes returned by a program to the operating system to indicate that there was an error during operation. return 0 usually means that the program ran without errors.

Answer 2

Ok thank you guiz

Answer 3

It is OK to omit the return statement for main() in C++.

http://www.stroustrup.com/bs_faq2.html#void-main

Answer 4

Newbie please go through below link:

https://www.sololearn.com/Discuss/1463889/?ref=app