diff --git a/26. Remove Duplicates from Sorted Array/26. Remove Duplicates from Sorted Array.csproj b/26. Remove Duplicates from Sorted Array/26. Remove Duplicates from Sorted Array.csproj
new file mode 100644
index 0000000..82c091f
--- /dev/null
+++ b/26. Remove Duplicates from Sorted Array/26. Remove Duplicates from Sorted Array.csproj	
@@ -0,0 +1,11 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net10.0</TargetFramework>
+    <RootNamespace>_26._Remove_Duplicates_from_Sorted_Array</RootNamespace>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
diff --git a/26. Remove Duplicates from Sorted Array/Program.cs b/26. Remove Duplicates from Sorted Array/Program.cs
new file mode 100644
index 0000000..3751555
--- /dev/null
+++ b/26. Remove Duplicates from Sorted Array/Program.cs	
@@ -0,0 +1,2 @@
+// See https://aka.ms/new-console-template for more information
+Console.WriteLine("Hello, World!");
diff --git a/26. Remove Duplicates from Sorted Array/Solution.cs b/26. Remove Duplicates from Sorted Array/Solution.cs
new file mode 100644
index 0000000..fab71f8
--- /dev/null
+++ b/26. Remove Duplicates from Sorted Array/Solution.cs	
@@ -0,0 +1,16 @@
+public class Solution {
+    public int RemoveDuplicates(int[] nums) {
+        var k = nums.Length;
+        var putIndex = 0;
+        for(var i = 0; i < nums.Length; i++)
+        {
+            while(i < nums.Length - 1 && nums[i+1] == nums[i])
+            {
+                i++;
+                k--;
+            }
+            nums[putIndex++] = nums[i];
+        }
+        return k;
+    }
+}
\ No newline at end of file
diff --git a/Leetcode.sln b/Leetcode.sln
index 69f90ff..3193445 100644
--- a/Leetcode.sln
+++ b/Leetcode.sln
@@ -187,6 +187,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "18. 4Sum", "18. 4Sum\18. 4S
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "23. Merge k Sorted Lists", "23. Merge k Sorted Lists\23. Merge k Sorted Lists.csproj", "{B586286C-CBA7-4AF0-A2B3-E488639B2E5C}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "26. Remove Duplicates from Sorted Array", "26. Remove Duplicates from Sorted Array\26. Remove Duplicates from Sorted Array.csproj", "{5CE01D6E-7C12-45DC-8C26-DFE67F16AD3F}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -1301,6 +1303,18 @@ Global
 		{B586286C-CBA7-4AF0-A2B3-E488639B2E5C}.Release|x64.Build.0 = Release|Any CPU
 		{B586286C-CBA7-4AF0-A2B3-E488639B2E5C}.Release|x86.ActiveCfg = Release|Any CPU
 		{B586286C-CBA7-4AF0-A2B3-E488639B2E5C}.Release|x86.Build.0 = Release|Any CPU
+		{5CE01D6E-7C12-45DC-8C26-DFE67F16AD3F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{5CE01D6E-7C12-45DC-8C26-DFE67F16AD3F}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{5CE01D6E-7C12-45DC-8C26-DFE67F16AD3F}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{5CE01D6E-7C12-45DC-8C26-DFE67F16AD3F}.Debug|x64.Build.0 = Debug|Any CPU
+		{5CE01D6E-7C12-45DC-8C26-DFE67F16AD3F}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{5CE01D6E-7C12-45DC-8C26-DFE67F16AD3F}.Debug|x86.Build.0 = Debug|Any CPU
+		{5CE01D6E-7C12-45DC-8C26-DFE67F16AD3F}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{5CE01D6E-7C12-45DC-8C26-DFE67F16AD3F}.Release|Any CPU.Build.0 = Release|Any CPU
+		{5CE01D6E-7C12-45DC-8C26-DFE67F16AD3F}.Release|x64.ActiveCfg = Release|Any CPU
+		{5CE01D6E-7C12-45DC-8C26-DFE67F16AD3F}.Release|x64.Build.0 = Release|Any CPU
+		{5CE01D6E-7C12-45DC-8C26-DFE67F16AD3F}.Release|x86.ActiveCfg = Release|Any CPU
+		{5CE01D6E-7C12-45DC-8C26-DFE67F16AD3F}.Release|x86.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE