diff --git a/Alogrithm/.vs/Alogrithm/v16/.suo b/Alogrithm/.vs/Alogrithm/v16/.suo
index f3ce712..a393433 100644
Binary files a/Alogrithm/.vs/Alogrithm/v16/.suo and b/Alogrithm/.vs/Alogrithm/v16/.suo differ
diff --git a/Alogrithm/Alogrithm.sln b/Alogrithm/Alogrithm.sln
index f918ad6..6e7f385 100644
--- a/Alogrithm/Alogrithm.sln
+++ b/Alogrithm/Alogrithm.sln
@@ -5,6 +5,8 @@ VisualStudioVersion = 16.0.30804.86
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Alogrithm", "Alogrithm\Alogrithm.vcxproj", "{10672502-40A3-4840-8A25-4F01518FDEBE}"
 EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "UnitTest", "UnitTest\UnitTest.vcxproj", "{BABADA8A-F1CD-4EAA-9392-D0B01F8DF7A4}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|x64 = Debug|x64
@@ -21,6 +23,14 @@ Global
 		{10672502-40A3-4840-8A25-4F01518FDEBE}.Release|x64.Build.0 = Release|x64
 		{10672502-40A3-4840-8A25-4F01518FDEBE}.Release|x86.ActiveCfg = Release|Win32
 		{10672502-40A3-4840-8A25-4F01518FDEBE}.Release|x86.Build.0 = Release|Win32
+		{BABADA8A-F1CD-4EAA-9392-D0B01F8DF7A4}.Debug|x64.ActiveCfg = Debug|x64
+		{BABADA8A-F1CD-4EAA-9392-D0B01F8DF7A4}.Debug|x64.Build.0 = Debug|x64
+		{BABADA8A-F1CD-4EAA-9392-D0B01F8DF7A4}.Debug|x86.ActiveCfg = Debug|Win32
+		{BABADA8A-F1CD-4EAA-9392-D0B01F8DF7A4}.Debug|x86.Build.0 = Debug|Win32
+		{BABADA8A-F1CD-4EAA-9392-D0B01F8DF7A4}.Release|x64.ActiveCfg = Release|x64
+		{BABADA8A-F1CD-4EAA-9392-D0B01F8DF7A4}.Release|x64.Build.0 = Release|x64
+		{BABADA8A-F1CD-4EAA-9392-D0B01F8DF7A4}.Release|x86.ActiveCfg = Release|Win32
+		{BABADA8A-F1CD-4EAA-9392-D0B01F8DF7A4}.Release|x86.Build.0 = Release|Win32
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
diff --git a/Alogrithm/Alogrithm/Alogrithm.vcxproj b/Alogrithm/Alogrithm/Alogrithm.vcxproj
index 082fe17..b8069ed 100644
--- a/Alogrithm/Alogrithm/Alogrithm.vcxproj
+++ b/Alogrithm/Alogrithm/Alogrithm.vcxproj
@@ -139,10 +139,12 @@
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
+    <ClCompile Include="src\1_ContainsNearbyDuplicate.cpp" />
     <ClCompile Include="src\2_ExcelSheetColumnTitle.cpp" />
     <ClCompile Include="src\main.cpp" />
   </ItemGroup>
   <ItemGroup>
+    <ClInclude Include="include\1_ContainsNearbyDuplicate.h" />
     <ClInclude Include="include\2_ExcelSheetColumnTitle.h" />
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
diff --git a/Alogrithm/Alogrithm/Alogrithm.vcxproj.filters b/Alogrithm/Alogrithm/Alogrithm.vcxproj.filters
index ef4b6f2..5f38754 100644
--- a/Alogrithm/Alogrithm/Alogrithm.vcxproj.filters
+++ b/Alogrithm/Alogrithm/Alogrithm.vcxproj.filters
@@ -30,10 +30,16 @@
     <ClCompile Include="src\2_ExcelSheetColumnTitle.cpp">
       <Filter>源文件\src</Filter>
     </ClCompile>
+    <ClCompile Include="src\1_ContainsNearbyDuplicate.cpp">
+      <Filter>源文件\src</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="include\2_ExcelSheetColumnTitle.h">
       <Filter>头文件\include</Filter>
     </ClInclude>
+    <ClInclude Include="include\1_ContainsNearbyDuplicate.h">
+      <Filter>头文件\include</Filter>
+    </ClInclude>
   </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/Alogrithm/UnitTest/UnitTest.cpp b/Alogrithm/UnitTest/UnitTest.cpp
index d442764..fcdc2e9 100644
--- a/Alogrithm/UnitTest/UnitTest.cpp
+++ b/Alogrithm/UnitTest/UnitTest.cpp
@@ -10,19 +10,8 @@ namespace UnitTest
 	public:
 		
 
-		TEST_METHOD(TestMethode1)
+		TEST_METHOD(TestMethode2)
 		{
-			char str[50][10] = { 0 };//����ini�ļ���  �ڵ�����
-			int count = CalcCount(50, str);//����ini�ļ��� �ڵĸ���
-			bool nReal;//����������
-			CString na, nb, nExpect;	//b���治ͬ�ļ�ֵ
-			for (int j = 0; j < count; j++)
-			{
-				GetPrivateProfileString(str[j], "na", " ", na.GetBuffer(20), 20, FilePath);
-				GetPrivateProfileString(str[j], "nExpect", " ", nExpect.GetBuffer(20), 20, FilePath);
-				nReal = add(_ttoi64(na), _ttoi64(nb));	//_ttoi��CStringתΪ����
-				Assert::AreEqual(nReal, _ttoi64(nExpect));
-			}
 
 		}
 	};
diff --git a/Alogrithm/UnitTest/pch.h b/Alogrithm/UnitTest/pch.h
index d1168e9..b8b5096 100644
--- a/Alogrithm/UnitTest/pch.h
+++ b/Alogrithm/UnitTest/pch.h
@@ -14,6 +14,7 @@
 #include <atlstr.h>
 
 
+
 int CalcCount(int n, char(*str)[10]);
 int* str_device(CString* str, int* value_count);