CPP

c++ main function

// Without Arguments
int main() {
  // Body
}

// With Arguments
int main (int argc, char *argv[]) {
  // Body
}

c++ main function

int main() {
  
  //Your code... Or someone elses, doesn't really matter.
  
  return 0;
}

c++ int main()

// The compiler ignores white spaces. However, multiple lines makes the code 
// more readable. The body of int main() could also been written as:
int main () { cout << "Hello World! "; return 0; }