update gitignore and run resharper cleanup

1 files changed, 4 insertions, 5 deletions

diff --git a/lib/Extensions.cs b/lib/Extensions.cs
index 3c81f17..a1ffbcc 100644
--- a/lib/Extensions.cs
+++ b/lib/Extensions.cs
@@ -1,5 +1,4 @@
-using System;
-using System.Collections.Generic;
+using System.Collections.Generic;
 using System.Linq;
 
 namespace aoc2019.lib
@@ -8,13 +7,13 @@ namespace aoc2019.lib
     {
         public static IEnumerable<IEnumerable<T>> Permute<T>(this IEnumerable<T> list)
         {
-            if (list.Count() == 1) return new[] { list };
+            if (list.Count() == 1) return new[] {list};
             return list.SelectMany(t => Permute(list.Where(x => !x.Equals(t))), (v, p) => p.Prepend(v));
         }
 
         public static IEnumerable<string> Chunk(this string str, int chunkSize)
         {
-            for (int i = 0; i < str.Length; i += chunkSize)
+            for (var i = 0; i < str.Length; i += chunkSize)
                 yield return str.Substring(i, chunkSize);
         }
 
@@ -30,4 +29,4 @@ namespace aoc2019.lib
                     yield return item;
         }
     }
-}
+}
\ No newline at end of file