public override async Task Part1()
{
var removegtstSigns = PuzzleInput.Replace("<", "").Replace(">", "");
var lines = removegtstSigns.Split("\r\n").Select(x => x.Split(',').Select(y => new string(y.Trim().SkipWhile(z => z == '=').ToArray()))).Select(x => x.Select(y => y.Substring(y.IndexOf('=') + 1).Trim()));;
var moonsLijst = lines.Select(x => new Moon(Convert.ToInt32(x.First()), Convert.ToInt32(x.Skip(1).First()), Convert.ToInt32(x.Last())));
var moons = moonsLijst.ToList();
for (int count = 0; count < 1000; count++)
{
for (int i = 0; i < moons.Count(); i++)
{
var moon = moons[i];
var allMoons = moons.Where(x => x != moon);
moon.DetermineAndSaveVelocity(new Coordinate(allMoons.Count(x => x.Coordinate.X > moon.Coordinate.X) - allMoons.Count(x => x.Coordinate.X < moon.Coordinate.X), allMoons.Count(x => x.Coordinate.Y > moon.Coordinate.Y) - allMoons.Count(x => x.Coordinate.Y < moon.Coordinate.Y), allMoons.Count(x => x.Coordinate.Z > moon.Coordinate.Z) - allMoons.Count(x => x.Coordinate.Z < moon.Coordinate.Z)));
}
foreach (var moon in moons)
{
moon.ApplyVelocity();
}
}
var totalEnergy = moons.Select(x => x.GetEnergy()).Sum();
ResultPart1 = string.Empty;
}
public override string Part2()
{
var Carts = PuzzleInput.Replace("\r\n", "").Select((c, index) => new { c, index }).Where(d => d.c == '>' || d.c == 'v' || d.c == '<' || d.c == '^').Select((e, eindex) => new Cart(e.index, e.c, eindex + 1)).ToList();
var coordinates = string.Empty;
var crash = false;
while (!crash)
{
List <int> cartsTobeRemoved = new List <int>();
foreach (var Cart in Carts.OrderBy(c => c.Index))
{
if (Cart.Move().HasValue)
{
cartsTobeRemoved.AddRange(Carts.Where(c => c.Index == Cart.Index).Select(c => c.ID).ToList());
}
;
}
Carts.RemoveAll(c => cartsTobeRemoved.Contains(c.ID));
if (Carts.Count == 1)
{
coordinates = GetCoordinates(Carts.First().Index);
crash = true;
}
if (Test)
{
Print();
}
}
return(coordinates);
}
public Day13()
{
//Test = true;
PuzzleInput = Test ? part2puzzle : puzzle;
ID = 13;
Name = "Day 13: Mine Cart Madness";
trackLines = PuzzleInput.Replace("\r\n", "").ToCharArray();
originalTrack = PuzzleInput.Replace("\r\n", "").Replace(">", "-").Replace("<", "-").Replace("^", "|").Replace("v", "|").ToCharArray();
stride = PuzzleInput.Substring(0, PuzzleInput.IndexOf("\r\n")).Length;
}
private void FillFirstSpaceWithPuzzleInput(Space firstSpace)
{
var stride = firstSpace.Grid.GetLength(0);
var onestring = PuzzleInput.Replace("\r\n", "").Replace(" ", "");
for (int i = 0; i < onestring.Length; i++)
{
var row = (int)(i / stride);
firstSpace.Grid[i % stride, row] = onestring[i] == '.' ? 0 : 1;
}
}
public override string Part1()
{
var Carts = PuzzleInput.Replace("\r\n", "").Select((c, index) => new { c, index }).Where(d => d.c == '>' || d.c == 'v' || d.c == '<' || d.c == '^').Select((e, eindex) => new Cart(e.index, e.c, eindex + 1)).ToList();
var coordinates = string.Empty;
var crash = false;
while (!crash)
{
foreach (var Cart in Carts)
{
if (Cart.Move().HasValue)
{
crash = true;
coordinates = GetCoordinates(Cart.Index);
}
;
}
if (Test)
{
Print();
}
}
return(coordinates);
}
public override async Task Part2()
{
var removegtstSigns = PuzzleInput.Replace("<", "").Replace(">", "");
var lines = removegtstSigns.Split("\r\n").Select(x => x.Split(',').Select(y => new string(y.Trim().SkipWhile(z => z == '=').ToArray()))).Select(x => x.Select(y => y.Substring(y.IndexOf('=') + 1).Trim()));;
var moonsLijst = lines.Select(x => new Moon(Convert.ToInt32(x.First()), Convert.ToInt32(x.Skip(1).First()), Convert.ToInt32(x.Last())));
var moons = moonsLijst.ToList();
var numberofMoons = moonsLijst.Count();
var width = 25;
var height = 20;
for (long step = 0; step < 300000; step++)
{
var bm = new int[width, height];
//initialstate = true;
Parallel.ForEach(moons, (moon) =>
{
// var moon = moons[i];
moon.UpIndex();
var allMoons = moons.Where(x => x != moon).ToHashSet();
moon.DetermineAndSaveVelocity(new Coordinate(allMoons.Count(x => x.Coordinate.X > moon.Coordinate.X) - allMoons.Count(x => x.Coordinate.X < moon.Coordinate.X), allMoons.Count(x => x.Coordinate.Y > moon.Coordinate.Y) - allMoons.Count(x => x.Coordinate.Y < moon.Coordinate.Y), allMoons.Count(x => x.Coordinate.Z > moon.Coordinate.Z) - allMoons.Count(x => x.Coordinate.Z < moon.Coordinate.Z)));
});
Parallel.ForEach(moons, (moon) =>
{
moon.ApplyVelocity();
});
}
var indexList = new List <long>();
var niceCoord = new Coordinate(0, 0, 0);
for (int step = 0; step < 300000; step++)
{
if (niceCoord.X == 0)
{
checkX(moons, niceCoord, step);
}
if (niceCoord.Y == 0)
{
checkY(moons, niceCoord, step);
}
if (niceCoord.Z == 0)
{
checkZ(moons, niceCoord, step);
}
if (niceCoord.HasAll)
{
break;
}
}
var listLong = new List <long>()
{
niceCoord.X, niceCoord.Y, niceCoord.Z
};
var output = listLong.Aggregate((x, y) => determineLCM(x, y));
var test = indexList.GroupBy(x => x).Where(g => g.Count() == numberofMoons);
var totalEnergy = moons.Select(x => x.GetEnergy()).Sum();
ResultPart2 = "";
}