From 4a43ef5ae5f47dac2fd51898e440358888ba7408 Mon Sep 17 00:00:00 2001
From: mhhung <mh.hung1994@gmail.com>
Date: Thu, 14 Aug 2025 15:44:41 +0800
Subject: [PATCH] feat : add c# solution

---
 202508/2264 largestGoodInteger/C#/C#.sln      | 24 +++++++
 202508/2264 largestGoodInteger/C#/Program.cs  | 63 +++++++++++++++++++
 .../C#/largestGoodInteger.csproj              | 10 +++
 3 files changed, 97 insertions(+)
 create mode 100644 202508/2264 largestGoodInteger/C#/C#.sln
 create mode 100644 202508/2264 largestGoodInteger/C#/Program.cs
 create mode 100644 202508/2264 largestGoodInteger/C#/largestGoodInteger.csproj

diff --git a/202508/2264 largestGoodInteger/C#/C#.sln b/202508/2264 largestGoodInteger/C#/C#.sln
new file mode 100644
index 0000000..8e77df2
--- /dev/null
+++ b/202508/2264 largestGoodInteger/C#/C#.sln	
@@ -0,0 +1,24 @@
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.5.2.0
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "largestGoodInteger", "largestGoodInteger.csproj", "{DF73131C-3A52-FFDC-7C0C-19190AA3E331}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{DF73131C-3A52-FFDC-7C0C-19190AA3E331}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{DF73131C-3A52-FFDC-7C0C-19190AA3E331}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{DF73131C-3A52-FFDC-7C0C-19190AA3E331}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{DF73131C-3A52-FFDC-7C0C-19190AA3E331}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {E9F3A871-90C4-4B8E-81E2-B0AF873694BF}
+	EndGlobalSection
+EndGlobal
diff --git a/202508/2264 largestGoodInteger/C#/Program.cs b/202508/2264 largestGoodInteger/C#/Program.cs
new file mode 100644
index 0000000..3e0853f
--- /dev/null
+++ b/202508/2264 largestGoodInteger/C#/Program.cs	
@@ -0,0 +1,63 @@
+public class Solution {
+    public string LargestGoodInteger(string num)
+    {
+        // var count = 0;
+        // char lastNum = 'a';
+        // var numList = new List<int>();
+        // for (var i = 0; i < num.Length; i++)
+        // {
+        //     if (num[i] == lastNum)
+        //     {
+        //         count++;
+        //         if (count == 3)
+        //         {
+        //             numList.Add(int.Parse(num[i].ToString()));
+        //         }
+        //     }
+        //     else
+        //     {
+        //         count = 1;
+        //     }
+
+        //     lastNum = num[i];
+        // }
+
+        // if (numList.Count == 0)
+        // {
+        //     return "";
+        // }
+        // else
+        // {
+        //     var a = numList.Max().ToString();
+        //     return $"{a}{a}{a}";
+        // }
+
+        string max = "";
+
+        for (int i = 0; i < num.Length - 2; i++)
+        {
+            if (num[i] == num[i + 1] && num[i] == num[i + 2])
+            {
+                string current = $"{num[i]}{num[i]}{num[i]}";
+
+                if (max == "") max = current;
+                else
+                {
+                    if (int.Parse(current) > int.Parse(max))
+                        max = current;
+                }
+            }
+        }
+        return max;
+    }
+}
+
+class program
+{
+    static void Main()
+    {
+        var solution = new Solution();
+
+        Console.WriteLine(solution.LargestGoodInteger("6777133339"));
+    }
+}
\ No newline at end of file
diff --git a/202508/2264 largestGoodInteger/C#/largestGoodInteger.csproj b/202508/2264 largestGoodInteger/C#/largestGoodInteger.csproj
new file mode 100644
index 0000000..2150e37
--- /dev/null
+++ b/202508/2264 largestGoodInteger/C#/largestGoodInteger.csproj	
@@ -0,0 +1,10 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>