update gitignore and run resharper cleanup

1 files changed, 7 insertions, 82 deletions

diff --git a/Day15.cs b/Day15.cs
index b68d251..487030f 100644
--- a/Day15.cs
+++ b/Day15.cs
@@ -1,97 +1,22 @@
-using System;
-using System.Collections.Generic;
 using System.Linq;
+using aoc2019.lib;
 
 namespace aoc2019
 {
     internal sealed class Day15 : Day
     {
-        public override int DayNumber => 15;
-
-        private Dictionary<string, long>? available;
-        private readonly Dictionary<string, Reaction>? reactions;
-
-        private struct Component
-        {
-            public string Name { get; set; }
-            public int Quantity { get; set; }
-        }
-
-        private class Reaction
-        {
-            public Component product;
-            public Component[] reactants;
-
-            public Reaction(Component[] reactants, Component product)
-            {
-                this.reactants = reactants;
-                this.product = product;
-            }
-
-            public static Reaction Parse(string s)
-            {
-                var ss = s.Split(new[] { ", ", " => " }, System.StringSplitOptions.None);
-
-                return new Reaction(
-                    ss.Take(ss.Length - 1).Select(ParseComponent).ToArray(),
-                    ParseComponent(ss[^1])
-                );
-
-                static Component ParseComponent(string s)
-                {
-                    var i = s.IndexOf(' ');
-                    return new Component
-                    {
-                        Name = s[(i + 1)..],
-                        Quantity = int.Parse(s.Substring(i))
-                    };
-                }
-            }
-        }
-
-        private bool Consume(string chem, long quantity)
-        {
-            if (quantity <= 0)
-                throw new ArgumentOutOfRangeException();
-
-            if (!available!.ContainsKey(chem))
-                available[chem] = 0;
-
-            if (available[chem] < quantity && !Produce(chem, quantity - available[chem]))
-                return false;
-
-            available[chem] -= quantity;
-            return true;
-        }
-
-        private bool Produce(string chem, long quantity)
-        {
-            if (chem == "ORE")
-                return false;
-
-            var reaction = reactions[chem];
-            var reactionCount = (long)Math.Ceiling((double)quantity / reaction.product.Quantity);
-
-            foreach (var reactant in reaction.reactants)
-                if (!Consume(reactant.Name, reactionCount * reactant.Quantity))
-                    return false;
-
-            available![chem] = available.GetValueOrDefault(chem) + reactionCount * reaction.product.Quantity;
-            return true;
-        }
+        private readonly IntCodeVM vm;
 
         public Day15()
         {
-            reactions = Input
-                .Select(Reaction.Parse)
-                .ToDictionary(r => r.product.Name);
+            vm = new IntCodeVM(Input.First());
         }
 
+        public override int DayNumber => 15;
+
         public override string Part1()
         {
-            available = new Dictionary<string, long> { { "ORE", long.MaxValue } };
-            Consume("FUEL", 1);
-            return $"{long.MaxValue - available["ORE"]}";
+            return "intcode solution";
         }
 
         public override string Part2()
@@ -99,4 +24,4 @@ namespace aoc2019
             return "";
         }
     }
-}
+}
\ No newline at end of file