What is difference between void main and main?

Answer 1

main is just name of the function that gets executed at first. Void means it doesn't return anything to the OS. We mostly return 0 in main because it gives message to the OS that the program ran successfully and there was no problem in its execution.

Answer 2

nothing

Answer 3

void main is mostly use in c ;
main is mostly use in c++;
may vise versa usage will make compile error