public static int FindAvailableSeatId(string boardingPassesDescription)
{
var bookedSeatIds = BoardingPassParser.ParseBoardingPassesToSeatIds(boardingPassesDescription).ToArray();
var allSeatIds = Enumerable.Range(bookedSeatIds.Min(), bookedSeatIds.Length);
return(allSeatIds.Except(bookedSeatIds).Single());
}
public void Parse_boarding_passes_to_seat_ids(
string boardingPassesDescription,
int[] expectedSeatIds)
{
//When
var seatIds = BoardingPassParser.ParseBoardingPassesToSeatIds(boardingPassesDescription);
//Then
Assert.Equal(expectedSeatIds, seatIds);
}
public static int GetHighestSeatId(string boardingPassesDescription) => BoardingPassParser .ParseBoardingPassesToSeatIds(boardingPassesDescription) .Max();
