Finished

.gitattributes

@@ -0,0 +1,63 @@
+###############################################################################
+# Set default behavior to automatically normalize line endings.
+###############################################################################
+* text=auto
+
+###############################################################################
+# Set default behavior for command prompt diff.
+#
+# This is need for earlier builds of msysgit that does not have it on by
+# default for csharp files.
+# Note: This is only used by command line
+###############################################################################
+#*.cs     diff=csharp
+
+###############################################################################
+# Set the merge driver for project and solution files
+#
+# Merging from the command prompt will add diff markers to the files if there
+# are conflicts (Merging from VS is not affected by the settings below, in VS
+# the diff markers are never inserted). Diff markers may cause the following 
+# file extensions to fail to load in VS. An alternative would be to treat
+# these files as binary and thus will always conflict and require user
+# intervention with every merge. To do so, just uncomment the entries below
+###############################################################################
+#*.sln       merge=binary
+#*.csproj    merge=binary
+#*.vbproj    merge=binary
+#*.vcxproj   merge=binary
+#*.vcproj    merge=binary
+#*.dbproj    merge=binary
+#*.fsproj    merge=binary
+#*.lsproj    merge=binary
+#*.wixproj   merge=binary
+#*.modelproj merge=binary
+#*.sqlproj   merge=binary
+#*.wwaproj   merge=binary
+
+###############################################################################
+# behavior for image files
+#
+# image files are treated as binary by default.
+###############################################################################
+#*.jpg   binary
+#*.png   binary
+#*.gif   binary
+
+###############################################################################
+# diff behavior for common document formats
+# 
+# Convert binary document formats to text before diffing them. This feature
+# is only available from the command line. Turn it on by uncommenting the 
+# entries below.
+###############################################################################
+#*.doc   diff=astextplain
+#*.DOC   diff=astextplain
+#*.docx  diff=astextplain
+#*.DOCX  diff=astextplain
+#*.dot   diff=astextplain
+#*.DOT   diff=astextplain
+#*.pdf   diff=astextplain
+#*.PDF   diff=astextplain
+#*.rtf   diff=astextplain
+#*.RTF   diff=astextplain

.gitignore

@@ -1,7 +1,6 @@
 ## Ignore Visual Studio temporary files, build results, and
 ## files generated by popular Visual Studio add-ons.
 ##
-## Get latest from https://github.com/github/gitignore/blob/main/VisualStudio.gitignore
 
 # User-specific files
 *.rsuser
@@ -29,6 +28,7 @@ x86/
 bld/
 [Bb]in/
 [Oo]bj/
+[Oo]ut/
 [Ll]og/
 [Ll]ogs/
 
@@ -57,7 +57,6 @@ dlldata.c
 # Benchmark Results
 BenchmarkDotNet.Artifacts/
 
-# .NET
 project.lock.json
 project.fragment.lock.json
 artifacts/

MathGame.csproj

@@ -0,0 +1,10 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net10.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

MathGame.slnx

@@ -0,0 +1,3 @@
+<Solution>
+  <Project Path="MathGame.csproj" />
+</Solution>

Program.cs

@@ -0,0 +1,125 @@
+namespace MathGame
+{
+    internal class Program
+    {
+        static void Main(string[] args)
+        {
+            Qestion[] qestions =
+            [
+                new Qestion("2 + 2", 4),
+                new Qestion("3 * 3", 9),
+                new Qestion("10 / 2", 5),
+                new Qestion("5 - 3", 2),
+            ];
+
+            List<string> history = [];
+
+            bool exit = false;
+            while (!exit)
+            {
+                Console.WriteLine("1 - Play");
+                Console.WriteLine("2 - View History");
+                Console.WriteLine("3 - Exit");
+                Console.Write("Choose an option: ");
+
+                string? choice = Console.ReadLine();
+
+                switch (choice)
+                {
+                    case "1":
+                        PlayGame(qestions, history);
+                        break;
+
+                    case "2":
+                        ShowHistory(history);
+                        break;
+
+                    case "3":
+                        exit = true;
+                        break;
+
+                    default:
+                        Console.WriteLine("Invalid option.");
+                        break;
+                }
+
+                Console.WriteLine();
+            }
+
+            Console.WriteLine("Thanks for playing!");
+        }
+
+        static void PlayGame(Qestion[] qestions, List<string> history)
+        {
+            DisplayQestions(qestions);
+            var inputIndex = ChooseQestion(qestions);
+
+            Console.WriteLine($"Answer this question {qestions[inputIndex].Text}: ");
+            string? answerInput = Console.ReadLine();
+
+            if (int.TryParse(answerInput, out int answer))
+            {
+                bool correct = qestions[inputIndex].IsCorrect(answer);
+                Console.WriteLine(correct ? "Correct" : "Incorrect");
+
+                history.Add($"{DateTime.Now:G} | {qestions[inputIndex].Text} | Your answer: {answer} | {(correct ? "Correct" : "Incorrect")}");
+            }
+            else
+            {
+                Console.WriteLine("Invalid integer.");
+                history.Add($"{DateTime.Now:G} | {qestions[inputIndex].Text} | Invalid answer");
+            }
+        }
+
+        static void ShowHistory(List<string> history)
+        {
+            Console.WriteLine("History");
+            Console.WriteLine("=======");
+
+            if (history.Count == 0)
+            {
+                Console.WriteLine("No history yet.");
+                return;
+            }
+
+            foreach (var item in history)
+            {
+                Console.WriteLine(item);
+            }
+        }
+
+        static void DisplayQestions(Qestion[] qestions)
+        {
+            Console.WriteLine("Choose Question To Answer");
+            Console.WriteLine("========================");
+            for (int i = 0; i < qestions.Length; i++)
+            {
+                Console.WriteLine($"{i + 1}- What is {qestions[i].Text} ?");
+            }
+        }
+
+        static int ChooseQestion(Qestion[] qestions)
+        {
+            string? input = Console.ReadLine();
+
+            if (int.TryParse(input, out int result))
+            {
+                if (result <= 0 || result > qestions.Length)
+                {
+                    Console.WriteLine("Error: choose from range.");
+                    return ChooseQestion(qestions);
+                }
+
+                return result - 1;
+            }
+
+            Console.WriteLine("Error: That is not a valid integer.");
+            return ChooseQestion(qestions);
+        }
+    }
+
+    internal record Qestion(string Text, int Answer)
+    {
+        public bool IsCorrect(int answer) => Answer == answer;
+    }
+}

README.md

@@ -0,0 +1 @@
+# MathGame