From 53b7f05dee87ad811b7ceeb90b55d5dbc964fbbe Mon Sep 17 00:00:00 2001
From: Ben Harris <ben@tilde.team>
Date: Thu, 5 Dec 2019 01:55:15 -0500
Subject: tidy day2

---
 Day2.cs | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

(limited to 'Day2.cs')

diff --git a/Day2.cs b/Day2.cs
index 095b454..1549e28 100644
--- a/Day2.cs
+++ b/Day2.cs
@@ -11,29 +11,31 @@ namespace aoc2019
         private readonly IEnumerable<int> input =
             File.ReadLines("input/day2.in").First().Split(',').Select(int.Parse);
 
-        public static List<int> RunIntCode(int noun, int verb, List<int> v)
+        public int RunIntCode(int noun, int verb)
         {
+            var v = input.ToList();
             v[1] = noun; v[2] = verb;
 
             for (var i = 0; v[i] != 99; i += 4)
-                switch (v[i])
+                v[v[i + 3]] = v[i] switch
                 {
-                    case 1: v[v[i + 3]] = v[v[i + 1]] + v[v[i + 2]]; break;
-                    case 2: v[v[i + 3]] = v[v[i + 1]] * v[v[i + 2]]; break;
-                }
-            return v;
+                    1 => v[v[i + 1]] + v[v[i + 2]],
+                    2 => v[v[i + 1]] * v[v[i + 2]]
+                };
+
+            return v[0];
         }
 
         public override string Part1()
         {
-            return $"{RunIntCode(12, 2, input.ToList())[0]}";
+            return $"{RunIntCode(12, 2)}";
         }
 
         public override string Part2()
         {
             for (var i = 0; i < 100; i++)
                 for (var j = 0; j < 100; j++)
-                    if (RunIntCode(i, j, input.ToList())[0] == 19690720)
+                    if (RunIntCode(i, j) == 19690720)
                         return $"{100 * i + j}";
 
             return string.Empty;
-- 
cgit 1.4.1