From 0cad16b5a452b659206b223a4cf2ba0dd517e9c3 Mon Sep 17 00:00:00 2001
From: Colin McMillen <colin@semicolin.games>
Date: Wed, 9 Dec 2020 08:42:04 -0500
Subject: [PATCH] ints -> longs

---
 2020/Day09.cs | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/2020/Day09.cs b/2020/Day09.cs
index 039f0c2..1519f39 100644
--- a/2020/Day09.cs
+++ b/2020/Day09.cs
@@ -10,13 +10,13 @@ namespace AdventOfCode {
 
   public class Day09 {
 
-    static bool Valid(List<long> ints, int preambleSize, int target) {
+    static bool Valid(List<long> longs, int preambleSize, int target) {
       for (int i = target - preambleSize; i < target - 1; i++) {
         for (int j = i + 1; j < target; j++) {
           if (i == j) {
             continue;
           }
-          if (ints[i] + ints[j] == ints[target]) {
+          if (longs[i] + longs[j] == longs[target]) {
             return true;
           }
         }
@@ -24,10 +24,10 @@ namespace AdventOfCode {
       return false;
     }
 
-    static long FindInvalid(List<long> ints, int preambleSize) {
-      for (int target = preambleSize; target < ints.Count(); target++) {
-        if (!Valid(ints, preambleSize, target)) {
-          return ints[target];
+    static long FindInvalid(List<long> longs, int preambleSize) {
+      for (int target = preambleSize; target < longs.Count(); target++) {
+        if (!Valid(longs, preambleSize, target)) {
+          return longs[target];
         }
       }
       throw new Exception("didn't find an invalid int");
@@ -35,8 +35,8 @@ namespace AdventOfCode {
 
     static long Part1() {
       string[] input = File.ReadAllLines(Util.RootDir + "day09.txt");
-      List<long> ints = input.ToList().Select(long.Parse).ToList();
-      return FindInvalid(ints, 25);
+      List<long> longs = input.ToList().Select(long.Parse).ToList();
+      return FindInvalid(longs, 25);
     }
 
     static int Part2() {
@@ -66,8 +66,8 @@ namespace AdventOfCode {
 277
 309
 576".Split('\n');
-      List<long> ints = example.ToList().Select(long.Parse).ToList();
-      Assert.Equal(127, FindInvalid(ints, 5));
+      List<long> longs = example.ToList().Select(long.Parse).ToList();
+      Assert.Equal(127, FindInvalid(longs, 5));
 
       Assert.Equal(50047984, Part1());
       Assert.Equal(-1, Part2());