public void Part01()
{
var cave = new LavaCave(System.IO.File.ReadAllLines("data/day09.txt").Select(l => l.ToArray().Select(c => int.Parse(char.ToString(c))).ToArray()).ToArray());
cave.Prime();
cave.Heights.Where(h => h.IsLowPoint).Select(h => h.Height + 1).Sum().Should().Be(539);
}
public LavaHeight(LavaCave parent, int x, int y, int height)
{
_height = height;
_x = x;
_y = y;
_parent = parent;
}
public void Part01Example()
{
var cave = new LavaCave(exampleString.Split("\n")
.Select(line => line.ToArray().Select(c => int.Parse(char.ToString(c))).ToArray())
.ToArray());
cave.Prime();
cave.Heights.Where(h => h.IsLowPoint).Select(h => h.Height + 1).Sum().Should().Be(15);
}
public void Part02()
{
var cave = new LavaCave(System.IO.File.ReadAllLines("data/day09.txt").Select(l => l.ToArray().Select(c => int.Parse(char.ToString(c))).ToArray()).ToArray());
cave.Prime();
var step1 = cave.Heights.Where(h => h.IsLowPoint).Select(h => h.BasinSize()).ToArray();
var step2 = step1.OrderByDescending(h => h).ToArray();
var step3 = step2.Take(3).ToArray();
var step4 = step3.Aggregate((a, b) => a * b).Should().Be(736920);
}
public void Part02Example()
{
var cave = new LavaCave(exampleString.Split("\n")
.Select(line => line.ToArray().Select(c => int.Parse(char.ToString(c))).ToArray())
.ToArray());
cave.Prime();
var step1 = cave.Heights.Where(h => h.IsLowPoint).Select(h => h.BasinSize()).ToArray();
var step2 = step1.OrderByDescending(h => h).ToArray();
var step3 = step2.Take(3).ToArray();
var step4 = step3.Aggregate((a, b) => a * b).Should().Be(1134);
}
