Add eliuds-eggs exercise (#1290)

config.json

@@ -2141,6 +2141,14 @@
         "practices": [],
         "prerequisites": [],
         "difficulty": 1
+      },
+      {
+        "slug": "eliuds-eggs",
+        "name": "Eliud's Eggs",
+        "uuid": "d5761ed1-a342-45eb-a2b3-95c7bc175046",
+        "practices": [],
+        "prerequisites": [],
+        "difficulty": 2
       }
     ],
     "foregone": [

exercises/Exercises.sln

@@ -285,6 +285,8 @@ Project("{F2A71F9B-5D33-465A-A702-920D77279786}") = "ResistorColorDuo", "practic
 EndProject
 Project("{F2A71F9B-5D33-465A-A702-920D77279786}") = "SquareRoot", "practice\square-root\SquareRoot.fsproj", "{C41EB0DE-54C9-4673-8B8B-E9AA43DF3746}"
 EndProject
+Project("{F2A71F9B-5D33-465A-A702-920D77279786}") = "EliudsEggs", "practice\eliuds-eggs\EliudsEggs.fsproj", "{9DB2B6C7-E5A4-4AE0-9892-643BEB5F0493}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -848,11 +850,12 @@ Global
 		{D7E215C6-4EE6-41AB-BD80-F126C50A590E}.Release|Any CPU.Build.0 = Release|Any CPU
 		{C41EB0DE-54C9-4673-8B8B-E9AA43DF3746}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{C41EB0DE-54C9-4673-8B8B-E9AA43DF3746}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{C41EB0DE-54C9-4673-8B8B-E9AA43DF3746}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{C41EB0DE-54C9-4673-8B8B-E9AA43DF3746}.Release|Any CPU.Build.0 = Release|Any CPU
+		{9DB2B6C7-E5A4-4AE0-9892-643BEB5F0493}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{9DB2B6C7-E5A4-4AE0-9892-643BEB5F0493}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{9DB2B6C7-E5A4-4AE0-9892-643BEB5F0493}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(NestedProjects) = preSolution
-		{9815492D-D8F9-439C-B73C-711693755626} = {9D239135-8242-4AC0-94AE-7CCD8408B531}
 		{5C7A1C6C-25A7-4D4B-89E6-ABE1A3D839B2} = {9D239135-8242-4AC0-94AE-7CCD8408B531}
 		{EAC7B507-0EB0-4D83-9EF0-9421FA2A2A74} = {9D239135-8242-4AC0-94AE-7CCD8408B531}
 		{0F831DDE-1EBF-485D-8517-4EA037EC6FD7} = {9D239135-8242-4AC0-94AE-7CCD8408B531}
@@ -991,5 +994,5 @@ Global
 		{6D2CFE86-D6B2-4820-B3D8-62255BF94DCD} = {29984DF2-2734-483C-BC7D-F6D41599DACD}
 		{D7E215C6-4EE6-41AB-BD80-F126C50A590E} = {29984DF2-2734-483C-BC7D-F6D41599DACD}
 		{C41EB0DE-54C9-4673-8B8B-E9AA43DF3746} = {29984DF2-2734-483C-BC7D-F6D41599DACD}
+		{9DB2B6C7-E5A4-4AE0-9892-643BEB5F0493} = {29984DF2-2734-483C-BC7D-F6D41599DACD}
 	EndGlobalSection
-EndGlobal

exercises/practice/eliuds-eggs/.config/dotnet-tools.json

@@ -0,0 +1,12 @@
+{
+  "version": 1,
+  "isRoot": true,
+  "tools": {
+    "fantomas-tool": {
+      "version": "4.7.9",
+      "commands": [
+        "fantomas"
+      ]
+    }
+  }
+}

exercises/practice/eliuds-eggs/.docs/instructions.md

@@ -0,0 +1,8 @@
+# Instructions
+
+Your task is to count the number of 1 bits in the binary representation of a number.
+
+## Restrictions
+
+Keep your hands off that bit-count functionality provided by your standard library!
+Solve this one yourself using other basic tools instead.

exercises/practice/eliuds-eggs/.docs/introduction.md

@@ -0,0 +1,47 @@
+# Introduction
+
+Your friend Eliud inherited a farm from her grandma Tigist.
+Her granny was an inventor and had a tendency to build things in an overly complicated manner.
+The chicken coop has a digital display showing an encoded number representing the positions of all eggs that could be picked up.
+
+Eliud is asking you to write a program that shows the actual number of eggs in the coop.
+
+The position information encoding is calculated as follows:
+
+1. Scan the potential egg-laying spots and mark down a `1` for an existing egg or a `0` for an empty spot.
+2. Convert the number from binary to decimal.
+3. Show the result on the display.
+
+Example 1:
+
+```text
+Chicken Coop:
+ _ _ _ _ _ _ _
+|E| |E|E| | |E|
+
+Resulting Binary:
+ 1 0 1 1 0 0 1
+
+Decimal number on the display:
+89
+
+Actual eggs in the coop:
+4
+```
+
+Example 2:
+
+```text
+Chicken Coop:
+ _ _ _ _ _ _ _ _
+| | | |E| | | | |
+
+Resulting Binary:
+ 0 0 0 1 0 0 0 0
+
+Decimal number on the display:
+16
+
+Actual eggs in the coop:
+1
+```

exercises/practice/eliuds-eggs/.meta/Example.fs

@@ -0,0 +1,9 @@
+module EliudsEggs
+
+let eggCount n =
+    let rec loop m count =
+        match m with
+        | 0 -> count
+        | _ -> loop (m >>> 1) (count + if m &&& 1 = 0 then 0 else 1)
+
+    loop n 0

exercises/practice/eliuds-eggs/.meta/config.json

@@ -0,0 +1,19 @@
+{
+  "authors": [
+    "erikschierboom"
+  ],
+  "files": {
+    "solution": [
+      "EliudsEggs.fs"
+    ],
+    "test": [
+      "EliudsEggsTests.fs"
+    ],
+    "example": [
+      ".meta/Example.fs"
+    ]
+  },
+  "blurb": "Help Eliud count the number of eggs in her chicken coop by counting the number of 1 bits in a binary representation.",
+  "source": "Christian Willner, Eric Willigers",
+  "source_url": "https://forum.exercism.org/t/new-exercise-suggestion-pop-count/7632/5"
+}

exercises/practice/eliuds-eggs/.meta/tests.toml

@@ -0,0 +1,22 @@
+# This is an auto-generated file.
+#
+# Regenerating this file via `configlet sync` will:
+# - Recreate every `description` key/value pair
+# - Recreate every `reimplements` key/value pair, where they exist in problem-specifications
+# - Remove any `include = true` key/value pair (an omitted `include` key implies inclusion)
+# - Preserve any other key/value pair
+#
+# As user-added comments (using the # character) will be removed when this file
+# is regenerated, comments can be added via a `comment` key.
+
+[559e789d-07d1-4422-9004-3b699f83bca3]
+description = "0 eggs"
+
+[97223282-f71e-490c-92f0-b3ec9e275aba]
+description = "1 egg"
+
+[1f8fd18f-26e9-4144-9a0e-57cdfc4f4ff5]
+description = "4 eggs"
+
+[0c18be92-a498-4ef2-bcbb-28ac4b06cb81]
+description = "13 eggs"

exercises/practice/eliuds-eggs/EliudsEggs.fs

@@ -0,0 +1,3 @@
+module EliudsEggs
+
+let eggCount n = failwith "Please implement the 'eggCount' function"

exercises/practice/eliuds-eggs/EliudsEggs.fsproj

@@ -0,0 +1,22 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <IsPackable>false</IsPackable>
+    <GenerateProgramFile>false</GenerateProgramFile>
+    <IsTestProject>true</IsTestProject>
+  </PropertyGroup>
+  <ItemGroup>
+    <Compile Include="EliudsEggs.fs" />
+    <Compile Include="EliudsEggsTests.fs" />
+  </ItemGroup>
+  <ItemGroup>
+    <PackageReference Include="Exercism.Tests" Version="0.1.0-beta1" />
+    <PackageReference Include="FsUnit.xUnit" Version="4.0.4" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.8.3" />
+    <PackageReference Include="xunit" Version="2.4.1" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3">
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
+  </ItemGroup>
+</Project>

exercises/practice/eliuds-eggs/EliudsEggsTests.fs

@@ -0,0 +1,23 @@
+module EliudsEggsTests
+
+open FsUnit.Xunit
+open Xunit
+
+open EliudsEggs
+
+[<Fact>]
+let ``0 eggs`` () =
+    eggCount 0 |> should equal 0
+
+[<Fact(Skip = "Remove this Skip property to run this test")>]
+let ``1 egg`` () =
+    eggCount 16 |> should equal 1
+
+[<Fact(Skip = "Remove this Skip property to run this test")>]
+let ``4 eggs`` () =
+    eggCount 89 |> should equal 4
+
+[<Fact(Skip = "Remove this Skip property to run this test")>]
+let ``13 eggs`` () =
+    eggCount 2000000000 |> should equal 13
+

generators/Generators.fs

@@ -2038,3 +2038,6 @@ type ResistorColorDuo() =
 
 type SquareRoot() =
     inherit ExerciseGenerator()
+
+type EliudsEggs() =
+    inherit ExerciseGenerator()