Initial commit — Wordle/letter word solver and scorer

2026-05-10 03:01:15 +00:00
commit 900ace491f
41 changed files with 391999 additions and 0 deletions
@@ -0,0 +1,83 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace Core
+{
+    public class LetterPositionFrequency : IComparer<string>
+    {
+        private readonly Dictionary<char, int>[] _letterFrequencies;
+
+        private LetterPositionFrequency(Dictionary<char, int>[] letterFrequencies)
+        {
+            _letterFrequencies = letterFrequencies;
+        }
+
+
+        public LetterPositionFrequency(DictionarySearcher dictionarySearcher, int wordLen)
+            : this(GetLetterPositionFreq(dictionarySearcher.GetWords(), wordLen))
+        {
+
+        }
+
+
+        public LetterPositionFrequency(WordleUtil wordleUtil, int wordLen)
+            : this(GetLetterPositionFreq(wordleUtil.Words, wordLen))
+        {
+        }
+
+        public LetterPositionFrequency(IList<string> words, int wordLen)
+            : this(GetLetterPositionFreq(words, wordLen))
+        {
+        }
+
+        public static Dictionary<char, int>[] GetLetterPositionFreq(IList<string> words, int wordLen)
+        {
+            var ws = words.Where(w => w.Length == wordLen).ToList();
+
+            var freqList = new Dictionary<char, int>[wordLen];
+            for (var i = 0; i < wordLen; i++)
+            {
+                var letters = Enumerable.Range(0, 26).Select(r => Convert.ToChar('A' + r));
+                freqList[i] =
+                    letters.ToDictionary(c => c,
+                        c => ws.Count(w => w[i] == c)
+                    );
+            }
+
+            return freqList;
+        }
+
+        public IEnumerable<Tuple<string, int>> ScoreWords(IEnumerable<string> words, WordleUtil wordleUtil = null)
+        {
+            return 
+                from word in words 
+                let score = 
+                    word.Select((c, i) => _letterFrequencies[i][c]).Sum()
+                select
+                    wordleUtil != null 
+                    ? Tuple.Create(word, Convert.ToInt32(wordleUtil.FactorRepeatedLetters(word, score)))
+                    : Tuple.Create(word, score)
+                ;
+        }
+
+        public List<string> SortWords(IEnumerable<string> words, WordleUtil wordleUtil = null)
+        {
+            return ScoreWords(words, wordleUtil)
+                .OrderByDescending(w => w.Item2)
+                .Select(w => w.Item1)
+                .ToList();
+        }
+
+        private int ScoreWord(string word)
+        {
+            return word.Select((c, i) => _letterFrequencies[i][c]).Sum();
+        }
+
+        public int Compare(string x, string y)
+        {
+            return ScoreWord(y).CompareTo(ScoreWord(x));
+        }
+
+    }
+}