This is a C++ Program, I want to understand what it exactly does, line by line. #include  #include  using namespace std; int main() { ifstream fin; fin.open("my-input-file.txt", ios::in); char my_character ; int number_of_lines = 0; while (!fin.eof() ) { fin.get(my_character); cout << my_character; if (my_character == ' '){ ++number_of_lines; } } cout << "NUMBER OF LINES: " << number_of_lines << endl; }