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diff --git a/w-bug_algori_8.16/.vs/w-bug_algori_8.16/v17/ipch/AutoPCH/1662e33562e426c2/TEST.ipch b/w-bug_algori_8.16/.vs/w-bug_algori_8.16/v17/ipch/AutoPCH/1662e33562e426c2/TEST.ipch
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diff --git a/w-bug_algori_8.16/w-bug_algori_8.16.sln b/w-bug_algori_8.16/w-bug_algori_8.16.sln
new file mode 100644
index 0000000..4ca1d83
--- /dev/null
+++ b/w-bug_algori_8.16/w-bug_algori_8.16.sln
@@ -0,0 +1,31 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.6.33829.357
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "w-bug_algori_8.16", "w-bug_algori_8.16\w-bug_algori_8.16.vcxproj", "{572ADCE9-CB18-4205-9EE1-70DECAC952D0}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|x64 = Debug|x64
+		Debug|x86 = Debug|x86
+		Release|x64 = Release|x64
+		Release|x86 = Release|x86
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{572ADCE9-CB18-4205-9EE1-70DECAC952D0}.Debug|x64.ActiveCfg = Debug|x64
+		{572ADCE9-CB18-4205-9EE1-70DECAC952D0}.Debug|x64.Build.0 = Debug|x64
+		{572ADCE9-CB18-4205-9EE1-70DECAC952D0}.Debug|x86.ActiveCfg = Debug|Win32
+		{572ADCE9-CB18-4205-9EE1-70DECAC952D0}.Debug|x86.Build.0 = Debug|Win32
+		{572ADCE9-CB18-4205-9EE1-70DECAC952D0}.Release|x64.ActiveCfg = Release|x64
+		{572ADCE9-CB18-4205-9EE1-70DECAC952D0}.Release|x64.Build.0 = Release|x64
+		{572ADCE9-CB18-4205-9EE1-70DECAC952D0}.Release|x86.ActiveCfg = Release|Win32
+		{572ADCE9-CB18-4205-9EE1-70DECAC952D0}.Release|x86.Build.0 = Release|Win32
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {AF837F1D-6E41-4C30-906C-6E8FA3368C3A}
+	EndGlobalSection
+EndGlobal
diff --git a/w-bug_algori_8.16/w-bug_algori_8.16/test.cpp b/w-bug_algori_8.16/w-bug_algori_8.16/test.cpp
new file mode 100644
index 0000000..aa42783
--- /dev/null
+++ b/w-bug_algori_8.16/w-bug_algori_8.16/test.cpp
@@ -0,0 +1,86 @@
+#include <iostream>
+#include <vector>
+
+using namespace std;
+
+//����
+//Ѱ��������˵�
+while (left < right)
+{
+	int mid = left + (right - left) / 2;
+	if (...)
+		left = mid + 1;
+	else
+		right = mid;
+}
+
+//Ѱ�������Ҷ˵�
+while (left < right)
+{
+	int mid = left + (right - left + 1) / 2;
+	if (...)
+		left = mid;
+	else
+		right = mid - 1;
+}
+
+
+//���ţ���·����+���ѡȡkey��
+
+//���ѡȡkey
+int Getrand(vector<int>& nums, int left, int right)
+{
+	return nums[rand() % (right - left + 1) + left];
+}
+
+//��·����
+void qsort(vector<int>& nums, int l, int r)
+{
+	if (l >= r)
+		return;
+	int key = Getrand(nums, l, r);
+	int left = l - 1, right = r + 1, i = l;
+	while (i < right)
+	{
+		if (nums[i] < key)
+			swap(nums[++left], nums[i++]);
+		else if (nums[i] == key)
+			i++;
+		else
+			swap(nums[--right], nums[i]);
+	}
+
+	qsort(nums, l, left);
+	qsort(nums, right, r);
+}
+
+
+//�鲢
+int tmp[50000];   //��ʱ����
+
+void mergesort(vector<int>& nums, int left, int right)
+{
+	if (left >= right)
+		return;
+	int mid = left + (right - left) / 2;
+	//�ָ�����
+	mergesort(nums, left, mid);
+	mergesort(nums, mid + 1, right);
+	//��ʼ�ϲ�����
+	int cur1 = left, cur2 = mid + 1, i = 0;
+	while (cur1 <= mid && cur2 <= right)
+	{
+		if (nums[cur1] < nums[cur2])
+			tmp[i++] = nums[cur1++];
+		else
+			tmp[i++] = nums[cur2++];
+	}
+
+	while (cur1 <= mid)
+		tmp[i++] = nums[cur1++];
+	while (cur2 <= right)
+		tmp[i++] = nums[cur2++];
+
+	for (int i = left; i <= right; i++)
+		nums[i] = tmp[i - left];
+}
\ No newline at end of file
diff --git a/w-bug_algori_8.16/w-bug_algori_8.16/w-bug_algori_8.16.vcxproj b/w-bug_algori_8.16/w-bug_algori_8.16/w-bug_algori_8.16.vcxproj
new file mode 100644
index 0000000..def43c9
--- /dev/null
+++ b/w-bug_algori_8.16/w-bug_algori_8.16/w-bug_algori_8.16.vcxproj
@@ -0,0 +1,135 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <VCProjectVersion>16.0</VCProjectVersion>
+    <Keyword>Win32Proj</Keyword>
+    <ProjectGuid>{572adce9-cb18-4205-9ee1-70decac952d0}</ProjectGuid>
+    <RootNamespace>wbugalgori816</RootNamespace>
+    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="Shared">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="test.cpp" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
\ No newline at end of file
diff --git a/w-bug_algori_8.16/w-bug_algori_8.16/w-bug_algori_8.16.vcxproj.filters b/w-bug_algori_8.16/w-bug_algori_8.16/w-bug_algori_8.16.vcxproj.filters
new file mode 100644
index 0000000..6a69d24
--- /dev/null
+++ b/w-bug_algori_8.16/w-bug_algori_8.16/w-bug_algori_8.16.vcxproj.filters
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="源文件">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="头文件">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd</Extensions>
+    </Filter>
+    <Filter Include="资源文件">
+      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="test.cpp">
+      <Filter>源文件</Filter>
+    </ClCompile>
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/w-bug_algori_8.16/w-bug_algori_8.16/w-bug_algori_8.16.vcxproj.user b/w-bug_algori_8.16/w-bug_algori_8.16/w-bug_algori_8.16.vcxproj.user
new file mode 100644
index 0000000..88a5509
--- /dev/null
+++ b/w-bug_algori_8.16/w-bug_algori_8.16/w-bug_algori_8.16.vcxproj.user
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup />
+</Project>
\ No newline at end of file