Saving up for a trip around the world

We found out that miles to Tokyo are easier to save flying economy class to Lisbon. And what about other cities? Muffin warned us that Tokyo is only part of his plan. In addition to Tokyo, Muffin wants to fly for free to Saskatoon (3000 miles) and Asuncion (7500 miles).

Of course, we will not call function calculateFlights alone for each distance. We will write all the miles into an array (do not forget to add Tokyo there) and we’ll go through it, calling the calculateFlights function at each iteration for flights to Valencia and Lisbon. We will transfer to the function the current element of the array: the required number of miles for a flight to a city from Muffin’s list.

Why is it convenient to use an array and a loop? We can scale the solution to any number of cities, be it 2, 10 or even 100. The loop will go through the array, call a function to count the flights, and then compare the results. And we’ll repeat it for each element of the array.

Let’s add an array with a loop and let’s finally tell Muffin how he can save up for the trips of his dreams. Hurry up, Muffin is tired of waiting!