too difficult ,..... print it works

Question

void_________()
int main.()
{
some _fun (){
return 0;
}
_____some _fun (){
cout<< "it works"<<endl;
}

Answer 1

Before your main function, you have your function prototype/declaration, which is the function header without the body. Below main function, that is your function header and body. Both answers can be found directly in the question.

Answer 2

if you write your whole function above main, you reduce the chance of getting a typo by writing your function header above main. I also need to have the whole function above main in case I want to add identical functions with different data types...