From fc5164fde284727174762e540751703901be99bb Mon Sep 17 00:00:00 2001
From: inga-lovinde <52715130+inga-lovinde@users.noreply.github.com>
Date: Sun, 12 Mar 2017 23:41:40 +0300
Subject: [PATCH] Minor code cleanup + microoptimization + readme update

---
 README.md                            | 2 +-
 WhiteRabbit/PermutationsGenerator.cs | 2 +-
 WhiteRabbit/StringsProcessor.cs      | 2 +-
 WhiteRabbit/VectorsConverter.cs      | 2 +-
 WhiteRabbit/VectorsProcessor.cs      | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/README.md b/README.md
index 0c635c4..eb68131 100644
--- a/README.md
+++ b/README.md
@@ -28,7 +28,7 @@ Multi-threaded performance with RyuJIT (.NET 4.6, 64-bit system) on quad-core Sa
 
 * If phrases of 6 words are allowed as well, then "more difficult" hash is solved in 30 seconds, "easiest" in 3 minutes, and "hard" in 6 minutes.
 
-* If phrases of 7 words are allowed as well, then "more difficult" hash is solved in 6 minutes.
+* If phrases of 7 words are allowed as well, then "more difficult" hash is solved in 3 minutes.
 
 Note that all measurements were done on a Release build; Debug build is significantly slower.
 
diff --git a/WhiteRabbit/PermutationsGenerator.cs b/WhiteRabbit/PermutationsGenerator.cs
index 4033214..aec4610 100644
--- a/WhiteRabbit/PermutationsGenerator.cs
+++ b/WhiteRabbit/PermutationsGenerator.cs
@@ -8,7 +8,7 @@
     /// <summary>
     /// Code taken from https://ericlippert.com/2013/04/22/producing-permutations-part-three/
     /// </summary>
-    internal class PermutationsGenerator
+    internal sealed class PermutationsGenerator
     {
         public static IEnumerable<Permutation> HamiltonianPermutations(int n)
         {
diff --git a/WhiteRabbit/StringsProcessor.cs b/WhiteRabbit/StringsProcessor.cs
index 76a26a4..fe248b3 100644
--- a/WhiteRabbit/StringsProcessor.cs
+++ b/WhiteRabbit/StringsProcessor.cs
@@ -6,7 +6,7 @@
     using System.Linq;
     using System.Numerics;
 
-    internal class StringsProcessor
+    internal sealed class StringsProcessor
     {
         public StringsProcessor(byte[] sourceString, int maxWordsCount, IEnumerable<byte[]> words)
         {
diff --git a/WhiteRabbit/VectorsConverter.cs b/WhiteRabbit/VectorsConverter.cs
index 6421f5c..a420108 100644
--- a/WhiteRabbit/VectorsConverter.cs
+++ b/WhiteRabbit/VectorsConverter.cs
@@ -9,7 +9,7 @@
     /// Converts strings to vectors containing chars count, based on a source string.
     /// E.g. for source string "abc", string "a" is converted to [1, 0, 0], while string "bcb" is converted to [0, 2, 1].
     /// </summary>
-    internal class VectorsConverter
+    internal sealed class VectorsConverter
     {
         public VectorsConverter(byte[] sourceString)
         {
diff --git a/WhiteRabbit/VectorsProcessor.cs b/WhiteRabbit/VectorsProcessor.cs
index a90d511..16229f2 100644
--- a/WhiteRabbit/VectorsProcessor.cs
+++ b/WhiteRabbit/VectorsProcessor.cs
@@ -7,7 +7,7 @@
     using System.Linq;
     using System.Numerics;
 
-    internal class VectorsProcessor
+    internal sealed class VectorsProcessor
     {
         private const byte MaxComponentValue = 8;
         private const int LeastCommonMultiple = 840;