Notes:
- Replace <class T> with <class S, class T>
- Replace <T> with <S,T>
- The index operator should accept
  parameters of type S instead of int
- In the body of index operator, change i to int(i)

- Your array should be able to work with the following data type

enum Day {Sunday, Monday, Tuesday, Wednesday,
	Thursday, Friday, Saturday};

ostream& operator<<(ostream& out, const Day& d)
{
		char *day[] = {"Sun", "Mon", "Tue", "Wed",
		"Thu", "Fri", "Sat"};
		return out << day[d];
}

void main(void)
{
	Array1D<Day,int> vol(7), freq(7);
}

- Look at the traffic.cpp. Run it. You will need daily_record.h
  You have to add daily_record.cpp to your project
- You will have to also look at daily_record.h and daily_record.cpp

- Modify it using the code above to calculate average volume
  for every day of the week for the entire year. Use the arrays
  vol and freq shown above for your calculations.

- Your output should look as follows:

Sun	18091
Mon	12230
Tue	10575
Wed	10888
Thu	12214
Fri	15052
Sat	15352