Searching and Sorting
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Ben
144
Searching and Sorting/Searching and Sorting.cpp
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144
Searching and Sorting/Searching and Sorting.cpp
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#include <iostream>
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#include <vector>
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template <typename T>
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void PrintVector(std::vector<T> v)
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{
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for (const auto& e : v)
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std::cout << e << ", ";
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std::cout << std::endl;
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}
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void Swap(int* a, int* b)
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{
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int temp = *b;
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*b = *a;
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*a = temp;
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}
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std::vector<int> SelectionSort(std::vector<int> in)
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{
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for (int i = 0; i < in.size(); i++)
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{
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int indexOfSmallest = i;
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for (int j = i; j < in.size(); j++)
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{
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if (in[indexOfSmallest] > in[j])
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{
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indexOfSmallest = j;
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}
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}
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if (indexOfSmallest != i)
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{
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Swap(&in[i], &in[indexOfSmallest]);
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}
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}
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return in;
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}
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std::vector<int> InsersionSort(std::vector<int> in)
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{
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for (int i = 0; i < in.size(); i++)
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{
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int itemToInsert = in[i];
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int indexHole = i;
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while (indexHole > 0 && in[indexHole - 1] > itemToInsert)
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{
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in[indexHole] = in[indexHole - 1];
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indexHole--;
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}
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in[indexHole] = itemToInsert;
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}
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return in;
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}
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std::vector<int> BubbleSort(std::vector<int> in)
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{
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for (int i = 0; i < in.size(); i++)
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{
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for (int j = 0; j < in.size() - 1; j++)
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{
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if (in[j] > in[j + 1])
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{
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Swap(&in[j], &in[j + 1]);
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}
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}
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}
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return in;
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}
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int LinearSearch(std::vector<int> vals, int lookup)
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{
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for (const auto& i : vals)
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{
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if (i == lookup)
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{
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return lookup;
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}
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}
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}
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std::vector<int> SubsetVector(std::vector<int> in, int start, int end)
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{
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std::vector<int> result(start - end + 1);
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std::copy(in.begin() + start, in.begin() + end + 1, result.begin());
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return result;
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}
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int BinarySearch(std::vector<int> set, int lookup)
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{
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if (set[set.size() / 2] == lookup) return lookup;
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if (set[set.size() / 2] > lookup) return BinarySearch(SubsetVector(set, set.size() / 2, set.size()), lookup);
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if (set[set.size() / 2] < lookup) return BinarySearch(SubsetVector(set, 0, set.size() / 2), lookup);
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}
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int TernarySearch(std::vector<int> set, int lookup)
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{
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if (set.size() == 1) return set[0];
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if (set.size() == 2) return BinarySearch(set, lookup);
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int firstThird = 0;
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int secondThird = set.size() / 3;
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int thirdThird = (set.size() / 3) * 2;
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int lastThird = set.size();
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if (set[firstThird] > lookup && set[secondThird] < lookup) return TernarySearch(SubsetVector(set, firstThird, secondThird), lookup);
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if (set[secondThird] > lookup && set[thirdThird] < lookup) return TernarySearch(SubsetVector(set, secondThird, thirdThird), lookup);
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if (set[thirdThird] > lookup && set[lastThird] < lookup) return TernarySearch(SubsetVector(set, thirdThird, lastThird), lookup);
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}
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int main()
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{
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std::vector<int> sorted;
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sorted = SelectionSort({ 1, 4, 3, 5, 7, 4, 3, 7, 8, 2, 10, 5, 100 });
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PrintVector(sorted);
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sorted = InsersionSort({ 1, 4, 3, 5, 7, 4, 3, 7, 8, 2, 10, 5, 100 });
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PrintVector(sorted);
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sorted = BubbleSort({ 1, 4, 3, 5, 7, 4, 3, 7, 8, 2, 10, 5, 100 });
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PrintVector(sorted);
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std::cout << std::endl;
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int lookup = 0;
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lookup = LinearSearch(BubbleSort({ 1, 4, 3, 5, 7, 4, 3, 7, 8, 2, 10, 5, 100 }), 5);
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std::cout << lookup << std::endl;
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lookup = BinarySearch(BubbleSort({ 1, 4, 3, 5, 7, 4, 3, 7, 8, 2, 10, 5, 100 }), 5);
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std::cout << lookup << std::endl;
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lookup = TernarySearch(BubbleSort({ 1, 4, 3, 5, 7, 4, 3, 7, 8, 2, 10, 5, 100 }), 5);
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std::cout << lookup << std::endl;
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}
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31
Searching and Sorting/Searching and Sorting.sln
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31
Searching and Sorting/Searching and Sorting.sln
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Microsoft Visual Studio Solution File, Format Version 12.00
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# Visual Studio Version 17
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VisualStudioVersion = 17.0.31808.319
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MinimumVisualStudioVersion = 10.0.40219.1
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Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Searching and Sorting", "Searching and Sorting.vcxproj", "{AADB9334-28DC-4954-844C-40FE45E480CE}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|x64 = Debug|x64
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Debug|x86 = Debug|x86
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Release|x64 = Release|x64
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Release|x86 = Release|x86
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EndGlobalSection
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{AADB9334-28DC-4954-844C-40FE45E480CE}.Debug|x64.ActiveCfg = Debug|x64
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{AADB9334-28DC-4954-844C-40FE45E480CE}.Debug|x64.Build.0 = Debug|x64
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{AADB9334-28DC-4954-844C-40FE45E480CE}.Debug|x86.ActiveCfg = Debug|Win32
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{AADB9334-28DC-4954-844C-40FE45E480CE}.Debug|x86.Build.0 = Debug|Win32
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{AADB9334-28DC-4954-844C-40FE45E480CE}.Release|x64.ActiveCfg = Release|x64
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{AADB9334-28DC-4954-844C-40FE45E480CE}.Release|x64.Build.0 = Release|x64
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{AADB9334-28DC-4954-844C-40FE45E480CE}.Release|x86.ActiveCfg = Release|Win32
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{AADB9334-28DC-4954-844C-40FE45E480CE}.Release|x86.Build.0 = Release|Win32
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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EndGlobalSection
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GlobalSection(ExtensibilityGlobals) = postSolution
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SolutionGuid = {D94B0734-9957-4BA1-93F4-1E2ED7D91F0B}
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EndGlobalSection
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EndGlobal
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147
Searching and Sorting/Searching and Sorting.vcxproj
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147
Searching and Sorting/Searching and Sorting.vcxproj
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<?xml version="1.0" encoding="utf-8"?>
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<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<ItemGroup Label="ProjectConfigurations">
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<ProjectConfiguration Include="Debug|Win32">
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<Configuration>Debug</Configuration>
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<Platform>Win32</Platform>
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</ProjectConfiguration>
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<ProjectConfiguration Include="Release|Win32">
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<Configuration>Release</Configuration>
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<Platform>Win32</Platform>
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</ProjectConfiguration>
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<ProjectConfiguration Include="Debug|x64">
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<Configuration>Debug</Configuration>
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<Platform>x64</Platform>
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</ProjectConfiguration>
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<ProjectConfiguration Include="Release|x64">
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<Configuration>Release</Configuration>
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<Platform>x64</Platform>
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</ProjectConfiguration>
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</ItemGroup>
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<PropertyGroup Label="Globals">
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<VCProjectVersion>16.0</VCProjectVersion>
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<Keyword>Win32Proj</Keyword>
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<ProjectGuid>{aadb9334-28dc-4954-844c-40fe45e480ce}</ProjectGuid>
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<RootNamespace>SearchingandSorting</RootNamespace>
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<WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
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</PropertyGroup>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
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<ConfigurationType>Application</ConfigurationType>
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<UseDebugLibraries>true</UseDebugLibraries>
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<PlatformToolset>v143</PlatformToolset>
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<CharacterSet>Unicode</CharacterSet>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
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<ConfigurationType>Application</ConfigurationType>
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<UseDebugLibraries>false</UseDebugLibraries>
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<PlatformToolset>v143</PlatformToolset>
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<WholeProgramOptimization>true</WholeProgramOptimization>
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<CharacterSet>Unicode</CharacterSet>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
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<ConfigurationType>Application</ConfigurationType>
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<UseDebugLibraries>true</UseDebugLibraries>
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<PlatformToolset>v143</PlatformToolset>
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<CharacterSet>Unicode</CharacterSet>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
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<ConfigurationType>Application</ConfigurationType>
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<UseDebugLibraries>false</UseDebugLibraries>
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<PlatformToolset>v143</PlatformToolset>
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<WholeProgramOptimization>true</WholeProgramOptimization>
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<CharacterSet>Unicode</CharacterSet>
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</PropertyGroup>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
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<ImportGroup Label="ExtensionSettings">
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</ImportGroup>
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<ImportGroup Label="Shared">
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</ImportGroup>
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<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
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<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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</ImportGroup>
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<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
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<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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</ImportGroup>
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<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
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<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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</ImportGroup>
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<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
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<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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</ImportGroup>
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<PropertyGroup Label="UserMacros" />
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
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<LinkIncremental>true</LinkIncremental>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
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<LinkIncremental>false</LinkIncremental>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
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<LinkIncremental>true</LinkIncremental>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
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<LinkIncremental>false</LinkIncremental>
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</PropertyGroup>
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
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<ClCompile>
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<WarningLevel>Level3</WarningLevel>
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<SDLCheck>true</SDLCheck>
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<PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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<ConformanceMode>true</ConformanceMode>
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</ClCompile>
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<Link>
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<SubSystem>Console</SubSystem>
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<GenerateDebugInformation>true</GenerateDebugInformation>
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</Link>
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</ItemDefinitionGroup>
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
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<ClCompile>
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<WarningLevel>Level3</WarningLevel>
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<FunctionLevelLinking>true</FunctionLevelLinking>
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<IntrinsicFunctions>true</IntrinsicFunctions>
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<SDLCheck>true</SDLCheck>
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<PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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<ConformanceMode>true</ConformanceMode>
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</ClCompile>
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<Link>
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<SubSystem>Console</SubSystem>
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<EnableCOMDATFolding>true</EnableCOMDATFolding>
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<OptimizeReferences>true</OptimizeReferences>
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<GenerateDebugInformation>true</GenerateDebugInformation>
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</Link>
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</ItemDefinitionGroup>
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
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<ClCompile>
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<WarningLevel>Level3</WarningLevel>
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<SDLCheck>true</SDLCheck>
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<PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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<ConformanceMode>true</ConformanceMode>
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</ClCompile>
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<Link>
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<SubSystem>Console</SubSystem>
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<GenerateDebugInformation>true</GenerateDebugInformation>
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</Link>
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</ItemDefinitionGroup>
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
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<ClCompile>
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<WarningLevel>Level3</WarningLevel>
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<FunctionLevelLinking>true</FunctionLevelLinking>
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<IntrinsicFunctions>true</IntrinsicFunctions>
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<SDLCheck>true</SDLCheck>
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<PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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<ConformanceMode>true</ConformanceMode>
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</ClCompile>
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<Link>
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<SubSystem>Console</SubSystem>
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<EnableCOMDATFolding>true</EnableCOMDATFolding>
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<OptimizeReferences>true</OptimizeReferences>
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<GenerateDebugInformation>true</GenerateDebugInformation>
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</Link>
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</ItemDefinitionGroup>
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<ItemGroup>
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<ClCompile Include="Searching and Sorting.cpp" />
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</ItemGroup>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
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<ImportGroup Label="ExtensionTargets">
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</ImportGroup>
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</Project>
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