What's the difference between the two codes such that the 1st and 2nd codes do not output any error but outputs the same result

Question

https://code.sololearn.com/cwmI13kavBfG/?ref=app
https://code.sololearn.com/cZBrI6mfHtgR/?ref=app

Answer 1

Thank you СОБАКА => Дебил / Retard for that code, I'll practice more with the code you shared

Answer 2

Thanks for that observation СОБАКА => Дебил / Retard

Answer 3

However, there was another case I saw similar to this that gave an error

Answer 4

For instance in my code СОБАКА => Дебил / Retard, if I put the code below at the beginning of my program, and remove it at the end, it throws no error but if it is done the other way round it throws an error why exactly is that?

static void Main(string[] args)
{

string[] words = {
"home",
"programming",
"victory",
"C#",
"football",
"sport",
"book",
"learn",
"dream",
"fun"
};

https://code.sololearn.com/cxmJ3k9ka7dF/?ref=app

Answer 5

I think I'm getting it nowСОБАКА => Дебил / Retard
So apart from struct and static, what other instance of Main methods do we have in C#