private static PlaneRange Check(char mod, PlaneRange range)
{
int half = (int)Math.Ceiling((range.End - range.Start) / 2.0);
if (mod == 'F' | mod == 'L')
{
range.End -= half;
}
else if (mod == 'B' | mod == 'R')
{
range.Start += half;
}
return(range);
}
public static void Run()
{
int min = 1000;
int max = 0;
List <int> seats = new List <int>();
foreach (string pass in _Input)
{
if (string.IsNullOrEmpty(pass))
{
continue;
}
var rows = new PlaneRange(0, 127);
var cols = new PlaneRange(0, 7);
for (int i = 0; i < 7; i++)
{
rows = Check(pass[i], rows);
}
for (int i = 7; i < 10; i++)
{
cols = Check(pass[i], cols);
}
if (pass[6] == 'F')
{
rows.Final = rows.Start;
}
else if (pass[6] == 'B')
{
rows.Final = rows.End;
}
if (pass[9] == 'L')
{
cols.Final = cols.Start;
}
else if (pass[9] == 'R')
{
cols.Final = cols.End;
}
max = Math.Max(max, (rows.Final * 8) + cols.Final);
min = Math.Min(min, (rows.Final * 8) + cols.Final);
seats.Add((rows.Final * 8) + cols.Final);
}
Console.WriteLine($"Day 5.1:\t{max}");
int missing = 0;
for (int i = min; i < max; i++)
{
if (missing != 0)
{
break;
}
if (!seats.Contains(i) & (seats.Contains(i - 1) & seats.Contains(i + 1)))
{
missing = i;
}
}
Console.WriteLine($"Day 5.2:\t{missing}");
}