What is the return 0 statment about?

Question

About Return

Answer 1

return 0 means that the main() function (and the program in general) ended properly. A value other than 0 means abnormal termination.
The compiler adds it at the end if you don't write it, but it's a convention to have it explicitly written there.

Answer 2

return 0 used to return the value zero to the operating system

Answer 3

the compiler expects some of the return value after the program execution.
it takes 0 as if the program compiled successfully and any other value as unsuccessful compilation.

Answer 4

Yes, you can skip the return 0;, but it's good style to have it written in the code

Answer 5

The function output

Answer 6

so we can skip return 0 , since the compiler adds it by default ?

Answer 7

for fun