public override void PartTwo(IInput input, IOutput output)
{
var location = FindFirstVisitedTwice(input.Parse());
var distance = PointHelpers.ManhattanDistance(Point2d.Origin, location);
output.WriteProperty("Distance from start in blocks", distance);
public override void PartOne(IInput input, IOutput output)
{
var target = input.Content.AsInt();
var end = SpiralPointGenerator().ElementAt(target - 1);
output.WriteProperty($"Distance from (0, 0) to {end}", PointHelpers.ManhattanDistance(Point2d.Origin, end));
}
public void PartOne(string[] lines, TextWriter @out)
{
var mappedLines = lines.Select(ParseLine).ToArray();
var closest = GetLineIntersections(mappedLines)
.OrderBy(x => PointHelpers.ManhattanDistance(CentralPort, x))
.First();
var distance = PointHelpers.ManhattanDistance(closest, CentralPort);
@out.WriteLine($"Closest point to CentralPort: {closest}: Distance {distance}");
}
public override void PartOne(IInput input, IOutput output)
{
var particles = input.Lines.ParseParticles();
for (var i = 0; i < 1000; i++)
{
particles = Tick(particles);
}
var closest = particles
.MinBy(particle => PointHelpers.ManhattanDistance(particle.Position, Point3d.Origin)) !;
output.WriteProperty("Closest", closest.Id);
public override void PartTwo(IInput input, IOutput output)
{
var scanners = input.Parse();
var(_, scannerPositions) = ReorientScannerRegions(scanners);
var maximumDistance = scannerPositions
.Subsets(2)
.Select(subset => PointHelpers.ManhattanDistance(subset[0], subset[1]))
.Max();
output.WriteProperty("Max Distance between Scanners", maximumDistance);
}
public override void PartTwo(IInput input, IOutput output)
{
var map = input.ParseFullMap();
var area2d = Area2d.Create(map.Keys);
var graph = new Graph(map);
var path = graph.AStarSearch(
area2d.TopLeft,
area2d.BottomRight,
static (a, b) => PointHelpers.ManhattanDistance(a, b));
var totalCost = path.Skip(1)
.Sum(point => map[point]);
output.WriteProperty("Total Cost", totalCost);
}
public override void PartOne(IInput input, IOutput output)
{
var graph = input.Parse();
var path = graph.AStarSearch(
new Point2d(1, 1),
new Point2d(31, 39),
static (a, b) => PointHelpers.ManhattanDistance(a, b));
output.WriteBlock(() =>
{
var visitedOfficeSpace = graph.SetVisited(path);
return(new Panel(visitedOfficeSpace.Print()));
});
output.WriteProperty("Path length", path.Length - 1);
}
public override void PartOne(IInput input, IOutput output)
{
var current = Point2d.Origin;
var direction = Direction.North;
foreach (var directions in input.Parse())
{
direction = directions.Direction switch
{
'L' => direction.Left(),
'R' => direction.Right(),
_ => throw new InvalidOperationException("Invalid direction")
};
current = Point2d.AddInDirection(current, direction, directions.Distance);
}
var distance = PointHelpers.ManhattanDistance(Point2d.Origin, current);
output.WriteProperty("Distance from start in blocks", distance);
}
