private long Solve(List <string> input, Func <int, int, int> CountSeatsAround, int clearAround)
{
WaitingArea = input.ToList();
WaitingRoomMaxY = WaitingArea.Count - 1;
WaitingRoomMaxX = WaitingArea.First().Length - 1;
var occupied = -1;
while (occupied != OccupiedWaitingRoom)
{
occupied = OccupiedWaitingRoom;
var copy = WaitingArea.Select(x => x.ToCharArray()).ToList();
for (var y = 0; y <= WaitingRoomMaxY; y++)
{
for (var x = 0; x <= WaitingRoomMaxX; x++)
{
if (copy[y][x] == Floor)
{
continue;
}
var occupiedAround = CountSeatsAround(y, x);
if (copy[y][x] == EmptySeat && occupiedAround == 0)
{
copy[y][x] = OccupiedSeat;
}
if (copy[y][x] == OccupiedSeat && occupiedAround >= clearAround)
{
copy[y][x] = EmptySeat;
}
}
}
WaitingArea = copy.Select(x => string.Join("", x)).ToList();
var output = string.Join(Environment.NewLine, WaitingArea);
}
return(OccupiedWaitingRoom);
}