prep 22

AdventOfCode/Day21.cs

@@ -56,7 +56,7 @@ public int FindPaths(int step, (int, int) start)
                 (x, y) = queue.Dequeue();
                 foreach (var (dx, dy) in dirs)
                 {
-                    var (nx, ny) = (dx + x, dy + y);
+                    var (nx, ny) = (dx + x, dy + y); 
                     var (tx, ty) = ((nx % _width + _width) % _width, (ny % _height + _height) % _height);
                     if (_grid.ContainsKey((tx, ty)) &&
                         (_grid[(tx, ty)] == '#' || visited.ContainsKey((nx, ny)))) continue;

AdventOfCode/Day22.cs

@@ -1,15 +1,56 @@
-using System.Text.RegularExpressions;
+using System.Data;
+using System.Text.RegularExpressions;
 
 namespace AdventOfCode;
 
 public class Day22 : BaseDay
 {
-    private List<string> _input;
-
+    private List<Brick> _bricks;
+
+    class Brick
+    {
+        public List<(int, int, int)> blocks;
+
+        public Brick(string line)
+        {
+            var ends = line.Split("~");
+            var start = ends[0].Split(",");
+            var end = ends[1].Split(",");
+
+            blocks = new List<(int, int, int)>();
+            for (int i = int.Parse(start[0]); i <= int.Parse(end[0]); i++)
+            {
+                for (int j = int.Parse(start[1]); j <= int.Parse(end[1]); j++)
+                {
+                    for (int k = int.Parse(start[2]); k <= int.Parse(end[2]); k++)
+                    {
+                        blocks.Add((i, j, k));
+                    }
+                }
+            }
+        }
+
+        public override string ToString()
+        {
+            // Print all blocks in format: x,y,z
+            return string.Join("", blocks.Select(block => $"{block.Item1},{block.Item2},{block.Item3}\n"));
+        }
+    }
 
     public Day22()
     {
-        _input = File.ReadAllLines(InputFilePath).ToList();
+       _bricks = File.ReadAllLines(InputFilePath).Select(line => new Brick(line)).ToList();
+
+
+
+       // Sort bricks by z lowest value
+        _bricks = _bricks.OrderBy(b => b.blocks.Min(block => block.Item3)).ToList();
+
+        foreach (var b in _bricks)
+        {
+           Console.WriteLine(b); 
+           // Console.WriteLine();
+        }
     }
 
     public override ValueTask<string> Solve_1()

AdventOfCode/Inputs/22.txt

@@ -0,0 +1,7 @@
+1,0,1~1,2,1
+0,0,2~2,0,2
+0,2,3~2,2,3
+0,0,4~0,2,4
+2,0,5~2,2,5
+0,1,6~2,1,6
+1,1,8~1,1,9

AdventOfCode/Program.cs

@@ -17,7 +17,7 @@ await Solver.SolveAll(opt =>
     // var indexes = args.Select(arg => uint.TryParse(arg, out var index) ? index : uint.MaxValue);
 
     // await Solver.Solve(indexes.Where(i => i < uint.MaxValue));
-    await Solver.Solve<Day19>(opt =>
+    await Solver.Solve<Day21>(opt =>
     {
         opt.ShowConstructorElapsedTime = true;
         opt.ShowTotalElapsedTimePerDay = true;