From f9cb505e1d85a18df7d35f0ba3c780166698dfb4 Mon Sep 17 00:00:00 2001
From: nikurasu <publicmail@nikurasu.gay>
Date: Mon, 19 Jun 2023 22:59:45 +0200
Subject: [PATCH] Complete part2 of day05

---
 2022/day05/Program.cs | 186 +++++++++++++++++++++++-------------------
 1 file changed, 102 insertions(+), 84 deletions(-)

diff --git a/2022/day05/Program.cs b/2022/day05/Program.cs
index d50f3ab..fb25cab 100644
--- a/2022/day05/Program.cs
+++ b/2022/day05/Program.cs
@@ -3,90 +3,108 @@ using System.Text.RegularExpressions;
 
 namespace day05
 {
-	class Program
-	{
-		public static void Main(string[] args)
-		{
-			Console.WriteLine("Hello from day05");
-			string input = File.ReadAllText(@"./input.txt");
-			string[] lines = input.Split(
-				new string[] { Environment.NewLine },
-				StringSplitOptions.None
-			);
-			Console.WriteLine((lines[0].Length/4)+1);
-			List<char>[] stacks = new List<char>[(lines[0].Length/4)+1];
-			for(int i = 0; i < stacks.Length; i++)
-			{
-				stacks[i] = new List<char>();
-			}
-			int instructionsStartLine = 0;
-			foreach(var line in lines.Select((val, index) => new {val, index}))
-			{
-				if(line.val.Length > 0)
-				{
-					if(line.val[0].Equals('m'))
-					{
-						Console.WriteLine("Read all Elements");
-						instructionsStartLine = line.index;
-						break;
-					}
-					for(int i = 0; i < line.val.Length; i += 4)
-					{
-						if(line.val[i].Equals('['))
-						{
-							Console.WriteLine("Gotcha" + line.val[i+1]);
-							stacks[i/4].Add(line.val[i+1]);							
-						}
-					}	
-				}
-			}
-			for(int i = 0; i < stacks.Length; i++)
-			{
-				stacks[i].Reverse();
-			}
-			List<Instruction> instrucList = new List<Instruction>();
-			for (int i = instructionsStartLine; i < lines.Length; i++)
-			{
-				List<int> nums = new List<int>();
-				foreach(string word in lines[i].Split(" "))
-				{
-					if (Regex.IsMatch(word, "^[\\d+$]"))
-					{
-						nums.Add(int.Parse(word));
-					}
-				}
-				if(nums.Count > 0)
-				{
-					instrucList.Add(new Instruction(nums[0], nums[1], nums[2]));
-				}
-			}
-			foreach(Instruction instruc in instrucList)
-			{
-				for (int i = 0; i < instruc.Ammont; i++)
-				{
-					stacks[instruc.Destination].Add(stacks[instruc.Source].Last());
-					stacks[instruc.Source].RemoveAt(stacks[instruc.Source].Count - 1);
-				}
-			}
-			// Print Results
-			foreach(List<char> stack in stacks)
-			{
-				Console.Write(stack[stack.Count - 1] + "\t");
-			}
-		}
-	}
+    class Program
+    {
+        public static void Main(string[] args)
+        {
+            Console.WriteLine("Hello from day05");
+            string input = File.ReadAllText(@"./input.txt");
+            string[] lines = input.Split(
+                new string[] { Environment.NewLine },
+                StringSplitOptions.None
+            );
+            Console.WriteLine((lines[0].Length / 4) + 1);
+            List<char>[] stacks = new List<char>[(lines[0].Length / 4) + 1];
+            List<char>[] stacks2 = new List<char>[(lines[0].Length / 4) + 1];
+            for (int i = 0; i < stacks.Length; i++)
+            {
+                stacks[i] = new List<char>();
+                stacks2[i] = new List<char>();
+            }
+            int instructionsStartLine = 0;
+            foreach (var line in lines.Select((val, index) => new { val, index }))
+            {
+                if (line.val.Length > 0)
+                {
+                    if (line.val[0].Equals('m'))
+                    {
+                        Console.WriteLine("Read all Elements");
+                        instructionsStartLine = line.index;
+                        break;
+                    }
+                    for (int i = 0; i < line.val.Length; i += 4)
+                    {
+                        if (line.val[i].Equals('['))
+                        {
+                            Console.WriteLine("Gotcha" + line.val[i + 1]);
+                            stacks[i / 4].Add(line.val[i + 1]);
+                            stacks2[i / 4].Add(line.val[i + 1]);
+                        }
+                    }
+                }
+            }
+            for (int i = 0; i < stacks.Length; i++)
+            {
+                stacks[i].Reverse();
+                stacks2[i].Reverse();
+            }
+            List<Instruction> instrucList = new List<Instruction>();
+            for (int i = instructionsStartLine; i < lines.Length; i++)
+            {
+                List<int> nums = new List<int>();
+                foreach (string word in lines[i].Split(" "))
+                {
+                    if (Regex.IsMatch(word, "^[\\d+$]"))
+                    {
+                        nums.Add(int.Parse(word));
+                    }
+                }
+                if (nums.Count > 0)
+                {
+                    instrucList.Add(new Instruction(nums[0], nums[1], nums[2]));
+                }
+            }
+            foreach (Instruction instruc in instrucList)
+            {
+                List<char> part2Items = new List<char>();
+                for (int i = 0; i < instruc.Ammont; i++)
+                {
+                    // Part 1
+                    stacks[instruc.Destination].Add(stacks[instruc.Source].Last());
+                    stacks[instruc.Source].RemoveAt(stacks[instruc.Source].Count - 1);
+                    part2Items.Add(stacks2[instruc.Source].Last());
+                    stacks2[instruc.Source].RemoveAt(stacks2[instruc.Source].Count - 1);
+                }
+                part2Items.Reverse();
+                stacks2[instruc.Destination].AddRange(part2Items);
+            }
+            // Print Results
+            Console.WriteLine("Part 1 Results:\n");
+            foreach (List<char> stack in stacks)
+            {
+                Console.Write(stack[stack.Count - 1] + "\t");
 
-	struct Instruction
-	{
-		public Instruction(int ammont, int source, int destination)
-		{
-			Ammont = ammont;
-			Source = source - 1;
-			Destination = destination - 1;
-		}
+            }
+            Console.WriteLine();
+            Console.WriteLine("Part 2 Results:\n");
+            foreach (List<char> stack in stacks2)
+            {
+                Console.Write(stack[stack.Count - 1] + "\t");
+            }
+        }
+    }
 
-		public int Ammont {get;}
-		public int Source {get;}
-		public int Destination {get;}
-	}
+    struct Instruction
+    {
+        public Instruction(int ammont, int source, int destination)
+        {
+            Ammont = ammont;
+            Source = source - 1;
+            Destination = destination - 1;
+        }
+
+        public int Ammont { get; }
+        public int Source { get; }
+        public int Destination { get; }
+    }
 }