protected override int Part2(string[] input)
{
var intcode = input[0];
var(map, _) = BuildMapAndFindOxygen(intcode);
var minutes = 0;
while (map.AllPoints(val => val == MapSpace).Count() > 0)
{
foreach (var p in map.AllPoints(val => val == MapOxygen).ToList())
{
foreach (var d in AllDirections())
{
var neighboor = MoveGenerator.MoveFrom(p, d);
if (map[neighboor] == MapSpace)
{
map[neighboor] = MapOxygen;
}
}
}
minutes++;
}
return(minutes);
}