lol

Mergesort and Quicksort
Searching and Sorting
2021-11-19 16:14:51 +00:00 · 2021-11-03 14:27:58 +00:00 · 2021-10-29 16:50:09 +01:00 · 2021-10-26 14:57:11 +01:00 · 2021-10-26 14:53:15 +01:00
10 changed files with 792 additions and 0 deletions
--- a/21
+++ b/21
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2021 Benjamin Kyd
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
--- a/Lists/Linear
+++ b/Lists/Linear
@@ -0,0 +1,31 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
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+MinimumVisualStudioVersion = 10.0.40219.1
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+EndProject
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+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|x64 = Debug|x64
+		Debug|x86 = Debug|x86
+		Release|x64 = Release|x64
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+		{667CD8AC-8201-452C-8FE7-EC68B2AFCD47}.Debug|x86.Build.0 = Debug|Win32
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+		{667CD8AC-8201-452C-8FE7-EC68B2AFCD47}.Release|x64.Build.0 = Release|x64
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--- a/Lists.vcxproj
+++ b/Lists.vcxproj
@@ -0,0 +1,147 @@
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+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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--- a/Lists/main.cpp
+++ b/Lists/main.cpp
@@ -0,0 +1,6 @@
+#include <iostream>
+
+int main()
+{
+	std::cout << "Hello, world!" << std::endl;
+}
--- a/Mergesort/Quicksort
+++ b/Mergesort/Quicksort
@@ -0,0 +1,87 @@
+#include <iostream>
+
+void PrintArr(int* arr, int size)
+{
+    for (int i = 0; i < size; i++)
+    {
+        std::cout << arr[i] << " ";
+    }
+    std::cout << std::endl;
+}
+
+void ShuffleArr(int* arr, int size)
+{
+    size_t i;
+    for (i = 0; i < size - 1; i++)
+    {
+        size_t j = i + rand() / (RAND_MAX / (size - i) + 1);
+        int t = arr[j];
+        arr[j] = arr[i];
+        arr[i] = t;
+    }
+}
+
+void Swap(int* a, int* b)
+{
+    int t = *a;
+    *a = *b;
+    *b = t;
+}
+
+void CopyArr(int* source, int* target, int start, int end)
+{
+    for (int i = start; i < end; i++)
+    {
+        target[i] = source[i];
+    }
+}
+
+
+void Merge(int* arr, int start, int mid, int end)
+{
+    std::cout << start << " " << mid << " " << end << std::endl;
+    int* leftHalf = new int[mid - start + 1];
+    int* rightHalf = new int[end - mid];
+
+    CopyArr(arr, leftHalf, 0, mid);
+    CopyArr(arr, rightHalf, mid + 1, end);
+
+    // merge together
+    int leftIndex = 0;
+    int rightIndex = 0;
+    for (int i = 0; i < end - start; i++)
+    {
+
+    }
+    delete[] leftHalf;
+    delete[] rightHalf;
+}
+
+void MergeSort(int* arr, int start, int end)
+{
+    int mid = (end - start) + (end / 2);
+    if (start < end)
+    {
+        MergeSort(arr, start, mid);
+        MergeSort(arr, mid + 1, end);
+    }
+    Merge(arr, start, mid, end);
+}
+
+
+int main()
+{
+    int* arr = new int[100];
+    for (int i = 0; i < 100; i++)
+        arr[i] = i;
+
+    // MergeSort
+    std::cout << "Merge Sort" << std::endl;
+    ShuffleArr(arr, 100);
+    MergeSort(arr, 0, 100);
+    PrintArr(arr, 100);
+
+    // QuickSort
+    ShuffleArr(arr, 100);
+
+}
--- a/Mergesort/Quicksort
+++ b/Mergesort/Quicksort
@@ -0,0 +1,31 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.0.31808.319
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Quicksort and Mergesort", "Quicksort and Mergesort.vcxproj", "{8B9DC41C-3596-4DF8-9033-C271426EA8C0}"
+EndProject
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+		Debug|x86 = Debug|x86
+		Release|x64 = Release|x64
+		Release|x86 = Release|x86
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+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
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+		SolutionGuid = {DD9C34C8-2219-48FD-BBD7-795EA892E0DB}
+	EndGlobalSection
+EndGlobal
--- a/Mergesort/Quicksort
+++ b/Mergesort/Quicksort
@@ -0,0 +1,147 @@
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+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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+      <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>
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+  <PropertyGroup Label="Globals">
+    <VCProjectVersion>16.0</VCProjectVersion>
+    <Keyword>Win32Proj</Keyword>
+    <ProjectGuid>{8b9dc41c-3596-4df8-9033-c271426ea8c0}</ProjectGuid>
+    <RootNamespace>QuicksortandMergesort</RootNamespace>
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+    <UseDebugLibraries>true</UseDebugLibraries>
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+    <CharacterSet>Unicode</CharacterSet>
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+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
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+    <CharacterSet>Unicode</CharacterSet>
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+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
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+    <CharacterSet>Unicode</CharacterSet>
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+  <ImportGroup Label="ExtensionSettings">
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+      <ConformanceMode>true</ConformanceMode>
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+      <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="Quicksort and Mergesort.cpp" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
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--- a/Sorting/Searching
+++ b/Sorting/Searching
@@ -0,0 +1,144 @@
+#include <iostream>
+#include <vector>
+
+template <typename T>
+void PrintVector(std::vector<T> v)
+{
+	for (const auto& e : v)
+		std::cout << e << ", ";
+	std::cout << std::endl;
+}
+
+void Swap(int* a, int* b)
+{
+	int temp = *b;
+	*b = *a;
+	*a = temp;
+}
+
+std::vector<int> SelectionSort(std::vector<int> in)
+{
+	for (int i = 0; i < in.size(); i++)
+	{
+		int indexOfSmallest = i;
+		for (int j = i; j < in.size(); j++)
+		{
+			if (in[indexOfSmallest] > in[j])
+			{
+				indexOfSmallest = j;
+			}
+		}
+		if (indexOfSmallest != i)
+		{
+			Swap(&in[i], &in[indexOfSmallest]);
+		}
+	}
+	return in;
+}
+
+std::vector<int> InsersionSort(std::vector<int> in)
+{
+	for (int i = 0; i < in.size(); i++)
+	{
+		int itemToInsert = in[i];
+		int indexHole = i;
+		while (indexHole > 0 && in[indexHole - 1] > itemToInsert)
+		{
+			in[indexHole] = in[indexHole - 1];
+			indexHole--;
+		}
+
+		in[indexHole] = itemToInsert;
+	}
+	return in;
+}
+
+std::vector<int> BubbleSort(std::vector<int> in)
+{
+	for (int i = 0; i < in.size(); i++)
+	{
+		for (int j = 0; j < in.size() - 1; j++)
+		{
+			if (in[j] > in[j + 1])
+			{
+				Swap(&in[j], &in[j + 1]);
+			}
+		}
+	}
+	return in;
+}
+
+int LinearSearch(std::vector<int> vals, int lookup)
+{
+	for (const auto& i : vals)
+	{
+		if (i == lookup)
+		{
+			return lookup;
+		}
+	}
+}
+
+
+std::vector<int> SubsetVector(std::vector<int> in, int start, int end)
+{
+	std::vector<int> result(start - end + 1);
+	std::copy(in.begin() + start, in.begin() + end + 1, result.begin());
+	return result;
+}
+
+int BinarySearch(std::vector<int> set, int lookup)
+{
+	if (set[set.size() / 2] == lookup) return lookup;
+	if (set[set.size() / 2] > lookup) return BinarySearch(SubsetVector(set, set.size() / 2, set.size()), lookup);
+	if (set[set.size() / 2] < lookup) return BinarySearch(SubsetVector(set, 0, set.size() / 2), lookup);
+}
+
+
+int TernarySearch(std::vector<int> set, int lookup)
+{
+	if (set.size() == 1) return set[0];
+	if (set.size() == 2) return BinarySearch(set, lookup);
+
+	int firstThird = 0;
+	int secondThird = set.size() / 3;
+	int thirdThird = (set.size() / 3) * 2;
+	int lastThird = set.size();
+
+	if (set[firstThird] > lookup && set[secondThird] < lookup) return TernarySearch(SubsetVector(set, firstThird, secondThird), lookup);
+	if (set[secondThird] > lookup && set[thirdThird] < lookup) return TernarySearch(SubsetVector(set, secondThird, thirdThird), lookup);
+	if (set[thirdThird] > lookup && set[lastThird] < lookup)   return TernarySearch(SubsetVector(set, thirdThird, lastThird), lookup);
+}
+
+int main()
+{
+	std::vector<int> sorted;
+
+	sorted = SelectionSort({ 1, 4, 3, 5, 7, 4, 3, 7, 8, 2, 10, 5, 100 });
+
+	PrintVector(sorted);
+
+	sorted = InsersionSort({ 1, 4, 3, 5, 7, 4, 3, 7, 8, 2, 10, 5, 100 });
+
+	PrintVector(sorted);
+
+	sorted = BubbleSort({ 1, 4, 3, 5, 7, 4, 3, 7, 8, 2, 10, 5, 100 });
+
+	PrintVector(sorted);
+
+
+	std::cout << std::endl;
+
+
+	int lookup = 0;
+
+	lookup = LinearSearch(BubbleSort({ 1, 4, 3, 5, 7, 4, 3, 7, 8, 2, 10, 5, 100 }), 5);
+	std::cout << lookup << std::endl;
+
+	lookup = BinarySearch(BubbleSort({ 1, 4, 3, 5, 7, 4, 3, 7, 8, 2, 10, 5, 100 }), 5);
+	std::cout << lookup << std::endl;
+
+	lookup = TernarySearch(BubbleSort({ 1, 4, 3, 5, 7, 4, 3, 7, 8, 2, 10, 5, 100 }), 5);
+	std::cout << lookup << std::endl;
+}
+
--- a/Sorting/Searching
+++ b/Sorting/Searching
@@ -0,0 +1,31 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.0.31808.319
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Searching and Sorting", "Searching and Sorting.vcxproj", "{AADB9334-28DC-4954-844C-40FE45E480CE}"
+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
+		{AADB9334-28DC-4954-844C-40FE45E480CE}.Debug|x64.ActiveCfg = Debug|x64
+		{AADB9334-28DC-4954-844C-40FE45E480CE}.Debug|x64.Build.0 = Debug|x64
+		{AADB9334-28DC-4954-844C-40FE45E480CE}.Debug|x86.ActiveCfg = Debug|Win32
+		{AADB9334-28DC-4954-844C-40FE45E480CE}.Debug|x86.Build.0 = Debug|Win32
+		{AADB9334-28DC-4954-844C-40FE45E480CE}.Release|x64.ActiveCfg = Release|x64
+		{AADB9334-28DC-4954-844C-40FE45E480CE}.Release|x64.Build.0 = Release|x64
+		{AADB9334-28DC-4954-844C-40FE45E480CE}.Release|x86.ActiveCfg = Release|Win32
+		{AADB9334-28DC-4954-844C-40FE45E480CE}.Release|x86.Build.0 = Release|Win32
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {D94B0734-9957-4BA1-93F4-1E2ED7D91F0B}
+	EndGlobalSection
+EndGlobal
--- a/Sorting/Searching
+++ b/Sorting/Searching
@@ -0,0 +1,147 @@
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+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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+    <ProjectConfiguration Include="Debug|Win32">
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+      <Platform>Win32</Platform>
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+    <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>
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+  <PropertyGroup Label="Globals">
+    <VCProjectVersion>16.0</VCProjectVersion>
+    <Keyword>Win32Proj</Keyword>
+    <ProjectGuid>{aadb9334-28dc-4954-844c-40fe45e480ce}</ProjectGuid>
+    <RootNamespace>SearchingandSorting</RootNamespace>
+    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
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+  <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.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
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+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <LinkIncremental>true</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <LinkIncremental>false</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <LinkIncremental>true</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <LinkIncremental>false</LinkIncremental>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(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)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="Searching and Sorting.cpp" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
Author	SHA1	Message	Date
Ben	d740b582d7	lol	2021-11-19 16:14:51 +00:00
Ben	25f2975974	Mergesort and Quicksort	2021-11-03 14:27:58 +00:00
Ben	e030661e2c	Searching and Sorting	2021-10-29 16:50:09 +01:00
Benjamin Kyd	e5947097bc	Merge pull request #1 from benkyd/add-license-1 Create LICENSE	2021-10-26 14:57:11 +01:00
Benjamin Kyd	16912925e0	Create LICENSE	2021-10-26 14:53:15 +01:00