sudoku

AdventOfCode2022/Puzzles/Sudoku.cs

@@ -11,7 +11,7 @@ public void Setup(string input)
             PuzzleState = _puzzleInput;
         }
 
-        private string Entropy(int position)
+        public string Entropy(int position)
         {
             var res = new HashSet<char>();
             var (col, row) = (position % 9, position / 9);
@@ -41,7 +41,10 @@ public IEnumerable<string> SolveFirstPart()
                     var slotsWithMinimalEntropy = emptySlots.Select(x => (p: x, e: Entropy(x))).OrderBy(x => x.e.Length).ThenBy(x => x.p).ToArray();
                     var slot = slotsWithMinimalEntropy[0];
                     if (slot.e == string.Empty)
+                    {
+                        yield return FormatPuzzleState();
                         continue;
+                    }
                     var sb = new StringBuilder(PuzzleState);
                     for (var i = 0; i<slot.e.Length;i++)
                     {

AdventOfCode2022web/Pages/DefaultPuzzleView.razor

@@ -9,7 +9,6 @@
     public int PuzzleNumber { get; set; }
     private string? _input { get; set; }
     private IPuzzleSolverV3? _solver;
-    private int _animationDuration = 500;
     public void UpdateView(int animationDuration)
     {
         StateHasChanged();

AdventOfCode2022web/Pages/Index.razor

@@ -8,3 +8,4 @@
 <p>Yes it is possible to create a Web SPA application in C#, thanks to WebAssembly !</p>
 <p>Here you will find my solutions to Advent of Code 2022 puzzles.</p>
 <p>Some puzzles require a lot of computing power and it's not very compatible with the use of a web browser.</p>
+<p>Day 27 is a Sudoku Solver, with no relation with Advent of Code !</p>

AdventOfCode2022web/Pages/Puzzle.razor

@@ -11,13 +11,13 @@
 </div>
 <div class="mb-3">
     <div class="mb-3">
-        <button class="btn btn-primary" disabled=@IsTask1Running @onclick="SolveFirstPart">Solve Part 1</button>
+        <button class="btn btn-primary" @onclick="SolveFirstPart">Solve Part 1</button>
     </div>
     <div><pre>@Output1</pre></div>
 </div>
 <div class="mb-3">
     <div class="mb-3">
-        <button class="btn btn-primary" disabled=@IsTask2Running @onclick="SolveSecondPart">Solve Part 2</button>
+        <button class="btn btn-primary" @onclick="SolveSecondPart">Solve Part 2</button>
     </div>
     <div><pre>@Output2</pre></div>
 </div>
@@ -30,8 +30,6 @@
     private string? Input;
     private string? Output1;
     private string? Output2;
-    private bool IsTask1Running;
-    private bool IsTask2Running;
     protected override async Task OnParametersSetAsync()
     {
         var puzzle = puzzleHelper.Puzzles[PuzzleNumber];

AdventOfCode2022web/Pages/SudokuView.razor

@@ -0,0 +1,76 @@
+@page "/SudokuView/{PuzzleNumber:int}"
+@inject PuzzleHelper puzzleHelper;
+@inject HttpClient Http
+
+<p>
+    This is a Sudoku solver, and it has really no relation with Advent Of Code !
+</p>
+
+<svg viewBox="-0.2 -0.2 9.2 9.8" class="img-fluid">
+    <defs>
+        <g id="sudoku-cell">
+            <rect x=".1" y=".1" width=".8" height=".8" fill="orange"></rect>
+        </g>
+        <g id="sudoku-bad-cell">
+            <rect x=".1" y=".1" width=".8" height=".8" fill="red"></rect>
+        </g>
+        <pattern id="gridPattern" width="1" height="1" patternUnits="userSpaceOnUse">
+            <rect width="1" height="1" fill="white" stroke="black" stroke-width="0.025" />
+        </pattern>
+        <pattern id="gridPattern2" width="3" height="3" patternUnits="userSpaceOnUse">
+            <rect width="3" height="3" fill="url(#gridPattern)" stroke="black" stroke-width="0.05" />
+        </pattern>
+    </defs>
+    <rect x="0" y="0" width="9.0" height="9.0" fill="url(#gridPattern2)"></rect>
+    @{
+        if ( _solver != null && _solver.PuzzleState.Length == 81)
+        {
+            var s = _solver.PuzzleState;
+            foreach (var y in Enumerable.Range(0, 9))
+                foreach (var x in Enumerable.Range(0, 9))
+                {
+                    var c = s[x + y * 9];
+                    if (c == '.')
+                    {
+                        c = ' ';
+                        var r = _solver.Entropy(x + y * 9).Length;
+                        if ( r == 0)
+                        {
+                                                    <use href="#sudoku-bad-cell" x="@x" y="@y" />
+                        }
+                        else
+                        {
+                            var e = (double)(10 - r) / 9;
+                            <use href="#sudoku-cell" x="@x" y="@y" opacity="@(e.ToStringCSS())" />
+                            <g transform="translate(.75,.76)">
+                                <text x="@x" y="@y" font-family="Comic Sans" font-size=".3" dominant-baseline="middle" text-anchor="middle">@r</text>
+                            </g>
+                        }
+                    }
+                    <g>
+                        <g transform="translate(.5,.56)">
+                            <text x="@x" y="@y" font-family="Comic Sans" font-size=".8" dominant-baseline="middle" text-anchor="middle">@c</text>
+                        </g>
+                    </g>
+                }
+        }
+    }
+</svg>
+
+<PuzzleInput PuzzleSolver="_solver" PuzzleNumber="@PuzzleNumber" Changed="@UpdateView" Input="@_input" />
+
+@code {
+    [Parameter]
+    public int PuzzleNumber { get; set; }
+    private string? _input { get; set; }
+    private Sudoku? _solver;
+    public void UpdateView(int animationDuration) => StateHasChanged();
+
+    protected override async Task OnInitializedAsync()
+    {
+        var puzzle = puzzleHelper.Puzzles[PuzzleNumber];
+        _solver = new Sudoku();
+        _input = (await Http.GetStringAsync($"sample-data/{puzzle.Type.Name}.txt")).Replace("\r", "");
+        _solver.Setup(_input);
+    }
+}

AdventOfCode2022web/Shared/NavMenu.razor

@@ -36,6 +36,8 @@
                     pageName = $"BlizzardBasinView/{item.Number}";
                 if (item.Type == typeof(UnstableDiffusion))
                     pageName = "UnstableDiffusionView";
+                if (item.Type == typeof(Sudoku))
+                    pageName = $"SudokuView/{item.Number}";
                 <div class="nav-item px-3" @onclick="ToggleNavMenu">
                     <NavLink class="nav-link" href="@(pageName)">
                         <span class="oi oi-puzzle-piece" aria-hidden="true"></span>