From f642e25bb3e280e5be9fbe3da141f17e1f98a283 Mon Sep 17 00:00:00 2001
From: inga-lovinde <52715130+inga-lovinde@users.noreply.github.com>
Date: Thu, 6 Apr 2017 12:45:50 +0300
Subject: [PATCH] Microoptimization

---
 dotnet/WhiteRabbit/PermutationsGenerator.cs            |  4 +---
 dotnet/WhiteRabbit/PhraseSet.cs                        |  2 +-
 dotnet/WhiteRabbit/PrecomputedPermutationsGenerator.cs | 10 ++++++----
 3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/dotnet/WhiteRabbit/PermutationsGenerator.cs b/dotnet/WhiteRabbit/PermutationsGenerator.cs
index aec4610..3d3a1c1 100644
--- a/dotnet/WhiteRabbit/PermutationsGenerator.cs
+++ b/dotnet/WhiteRabbit/PermutationsGenerator.cs
@@ -34,9 +34,7 @@
 
             public static Permutation Empty { get; } = new Permutation(new int[] { });
 
-            private int[] PermutationData { get; }
-
-            public int this[int index] => this.PermutationData[index];
+            public int[] PermutationData { get; }
 
             public static IEnumerable<Permutation> HamiltonianPermutationsIterator(int n)
             {
diff --git a/dotnet/WhiteRabbit/PhraseSet.cs b/dotnet/WhiteRabbit/PhraseSet.cs
index d8c58b3..6bed70a 100644
--- a/dotnet/WhiteRabbit/PhraseSet.cs
+++ b/dotnet/WhiteRabbit/PhraseSet.cs
@@ -5,7 +5,7 @@
     {
         public fixed uint Buffer[8 * Constants.PhrasesPerSet];
 
-        public PhraseSet(byte[][] words, PermutationsGenerator.Permutation[] permutations, int offset, int numberOfCharacters)
+        public PhraseSet(byte[][] words, int[][] permutations, int offset, int numberOfCharacters)
         {
             fixed (uint* bufferPointer = this.Buffer)
             {
diff --git a/dotnet/WhiteRabbit/PrecomputedPermutationsGenerator.cs b/dotnet/WhiteRabbit/PrecomputedPermutationsGenerator.cs
index 90757be..3389a32 100644
--- a/dotnet/WhiteRabbit/PrecomputedPermutationsGenerator.cs
+++ b/dotnet/WhiteRabbit/PrecomputedPermutationsGenerator.cs
@@ -5,17 +5,19 @@
 
     internal static class PrecomputedPermutationsGenerator
     {
-        private static PermutationsGenerator.Permutation[][] Permutations { get; } = Enumerable.Range(0, 8).Select(GeneratePermutations).ToArray();
+        private static int[][][] Permutations { get; } = Enumerable.Range(0, 8).Select(GeneratePermutations).ToArray();
 
         private static long[] PermutationsNumbers { get; } = GeneratePermutationsNumbers().Take(19).ToArray();
 
-        public static PermutationsGenerator.Permutation[] HamiltonianPermutations(int n) => Permutations[n];
+        public static int[][] HamiltonianPermutations(int n) => Permutations[n];
 
         public static long GetPermutationsNumber(int n) => PermutationsNumbers[n];
 
-        private static PermutationsGenerator.Permutation[] GeneratePermutations(int n)
+        private static int[][] GeneratePermutations(int n)
         {
-            var result = PermutationsGenerator.HamiltonianPermutations(n).ToArray();
+            var result = PermutationsGenerator.HamiltonianPermutations(n)
+                .Select(permutation => permutation.PermutationData)
+                .ToArray();
             if (result.Length % Constants.PhrasesPerSet == 0)
             {
                 return result;