//2565
public static int Solve1(string input)
{
var santa = new Position(0, 0);
var houses = new HashSet<Tuple<int, int>> { new Tuple<int, int>(0, 0) };
foreach (var direction in input)
santa.Move(direction).DeliverPresent(houses);
return houses.Count;
}
public static int Solve2(string input)
{
var santa = new Position(0, 0);
var robot = new Position(0, 0);
var houses = new HashSet<Tuple<int, int>> { new Tuple<int, int>(0, 0) };
var moveSanta = true;
foreach (var direction in input)
{
if(moveSanta)
santa.Move(direction).DeliverPresent(houses);
else
robot.Move(direction).DeliverPresent(houses);
moveSanta = !moveSanta;
}
return houses.Count;
}
public Position(Position position)
{
X = position.X;
Y = position.Y;
}