public static List <Seat> GetAdjacentSeatsWithinDistance(List <Seat> seats, Seat seat)
{
return(seats.Where(s => IsWithinDistance(s, seat))
.Select(s => s)
.ToList());
}
private static void Main()
{
string InputFileName = @"..\..\..\Input.txt";
string[] inputLines = File.ReadAllLines(InputFileName);
maxX = inputLines[0].Length + 2;
maxY = inputLines.Length + 2;
Seat[,] map = new Seat[maxX, maxY];
Seat[,] mapNext = new Seat[maxX, maxY];
for (int y = 0; y < maxY; y++)
{
for (int x = 0; x < maxX; x++)
{
if (IsBorder(x, y))
{
map[x, y] = Seat.Floor;
}
else
{
map[x, y] = CharToSeat(inputLines[y - 1][x - 1]);
}
}
}
int changes;
int step = 0;
do
{
changes = 0;
for (int y = 0; y < maxY; y++)
{
for (int x = 0; x < maxX; x++)
{
if (IsBorder(x, y))
{
mapNext[x, y] = Seat.Floor;
}
else
{
mapNext[x, y] = NextStepPart1(map, x, y);
if (map[x, y] != mapNext[x, y])
{
changes++;
}
}
}
}
Seat[,] t = map;
map = mapNext;
mapNext = t;
step++;
} while (changes != 0);
int occSeats = 0;
for (int i = 0; i < maxY; i++)
{
for (int j = 0; j < maxX; j++)
{
if (map[j, i] == Seat.Occupied)
{
occSeats++;
}
}
}
Console.WriteLine($"Part1: occupied seats: {occSeats} (right answer: 2344)");
// Part 2
step = 0;
occSeats = 0;
for (int y = 0; y < maxY; y++)
{
for (int x = 0; x < maxX; x++)
{
if (IsBorder(x, y))
{
map[x, y] = Seat.Floor;
}
else
{
map[x, y] = CharToSeat(inputLines[y - 1][x - 1]);
}
}
}
do
{
changes = 0;
for (int y = 0; y < maxY; y++)
{
for (int x = 0; x < maxX; x++)
{
if (IsBorder(x, y))
{
mapNext[x, y] = Seat.Floor;
}
else
{
mapNext[x, y] = NextStepPart2(map, x, y);
if (map[x, y] != mapNext[x, y])
{
changes++;
}
}
}
}
Seat[,] t = map;
map = mapNext;
mapNext = t;
step++;
} while (changes != 0);
for (int i = 0; i < maxY; i++)
{
for (int j = 0; j < maxX; j++)
{
if (map[j, i] == Seat.Occupied)
{
occSeats++;
}
}
}
Console.WriteLine($"Part2: occupied seats: {occSeats} (right answer: 2076)");
Console.ReadKey();
}
public static List <Seat> GetAdjacentSeats(List <Seat> seats, Seat seat)
{
return(seats.Where(s => IsImmediateAdjacentSeat(s, seat))
.Select(s => s)
.ToList());
}