Maksakov Ilya

.gitignore

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+# Download this file using PowerShell v3 under Windows with the following comand:
+# Invoke-WebRequest https://gist.githubusercontent.com/kmorcinek/2710267/raw/ -OutFile .gitignore
+# or wget:
+# wget --no-check-certificate http://gist.githubusercontent.com/kmorcinek/2710267/raw/.gitignore
+
+# User-specific files
+*.suo
+*.user
+*.sln.docstates
+
+# Build results
+
+[Dd]ebug/
+[Rr]elease/
+x64/
+build/
+[Bb]in/
+[Oo]bj/
+
+# NuGet Packages
+*.nupkg
+# The packages folder can be ignored because of Package Restore
+**/packages/*
+# except build/, which is used as an MSBuild target.
+!**/packages/build/
+# Uncomment if necessary however generally it will be regenerated when needed
+#!**/packages/repositories.config
+
+# MSTest test Results
+[Tt]est[Rr]esult*/
+[Bb]uild[Ll]og.*
+
+*_i.c
+*_p.c
+*.ilk
+*.meta
+*.obj
+*.pch
+*.pdb
+*.pgc
+*.pgd
+*.rsp
+*.sbr
+*.tlb
+*.tli
+*.tlh
+*.tmp
+*.tmp_proj
+*.log
+*.vspscc
+*.vssscc
+.builds
+*.pidb
+*.log
+*.scc
+
+# OS generated files #
+.DS_Store*
+Icon?
+
+# Visual C++ cache files
+ipch/
+*.aps
+*.ncb
+*.opensdf
+*.sdf
+*.cachefile
+
+# Visual Studio profiler
+*.psess
+*.vsp
+*.vspx
+
+# Guidance Automation Toolkit
+*.gpState
+
+# ReSharper is a .NET coding add-in
+_ReSharper*/
+*.[Rr]e[Ss]harper
+
+# TeamCity is a build add-in
+_TeamCity*
+
+# DotCover is a Code Coverage Tool
+*.dotCover
+
+# NCrunch
+*.ncrunch*
+.*crunch*.local.xml
+
+# Installshield output folder
+[Ee]xpress/
+
+# DocProject is a documentation generator add-in
+DocProject/buildhelp/
+DocProject/Help/*.HxT
+DocProject/Help/*.HxC
+DocProject/Help/*.hhc
+DocProject/Help/*.hhk
+DocProject/Help/*.hhp
+DocProject/Help/Html2
+DocProject/Help/html
+
+# Click-Once directory
+publish/
+
+# Publish Web Output
+*.Publish.xml
+
+# Windows Azure Build Output
+csx
+*.build.csdef
+
+# Windows Store app package directory
+AppPackages/
+
+# Others
+*.Cache
+ClientBin/
+# [Ss]tyle[Cc]op.*
+~$*
+*~
+*.dbmdl
+*.[Pp]ublish.xml
+*.pfx
+*.publishsettings
+modulesbin/
+tempbin/
+
+# EPiServer Site file (VPP)
+AppData/
+
+# RIA/Silverlight projects
+Generated_Code/
+
+# Backup & report files from converting an old project file to a newer
+# Visual Studio version. Backup files are not needed, because we have git ;-)
+_UpgradeReport_Files/
+Backup*/
+UpgradeLog*.XML
+UpgradeLog*.htm
+
+# vim
+*.txt~
+*.swp
+*.swo
+
+# svn
+.svn
+
+# Remainings from resolvings conflicts in Source Control
+*.orig
+
+# SQL Server files
+**/App_Data/*.mdf
+**/App_Data/*.ldf
+**/App_Data/*.sdf
+
+
+#LightSwitch generated files
+GeneratedArtifacts/
+_Pvt_Extensions/
+ModelManifest.xml
+
+# =========================
+# Windows detritus
+# =========================
+
+# Windows image file caches
+Thumbs.db
+ehthumbs.db
+
+# Folder config file
+Desktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# Mac desktop service store files
+.DS_Store
+
+# SASS Compiler cache
+.sass-cache
+
+# Visual Studio 2014 CTP
+**/*.sln.ide
+
+# Visual Studio temp something
+.vs/
+
+# VS 2015+
+*.vc.vc.opendb
+*.vc.db
+
+# Rider
+.idea/
+
+**/node_modules/*
+
+# Added by Jskonst
+.vscode/
+Properties/
+
+#####
+# End of core ignore list, below put you custom 'per project' settings (patterns or path)
+#####

ConsoleApp1.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.29613.14
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ConsoleApp1", "ConsoleApp1\ConsoleApp1.csproj", "{F184E3BB-49E2-41FC-9329-443EC130168D}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "XUnitTest", "XUnitTest\XUnitTest.csproj", "{A0A3BD81-4D5F-45BD-BC69-77BCCB9B0670}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{F184E3BB-49E2-41FC-9329-443EC130168D}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{F184E3BB-49E2-41FC-9329-443EC130168D}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{F184E3BB-49E2-41FC-9329-443EC130168D}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{F184E3BB-49E2-41FC-9329-443EC130168D}.Release|Any CPU.Build.0 = Release|Any CPU
+		{A0A3BD81-4D5F-45BD-BC69-77BCCB9B0670}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{A0A3BD81-4D5F-45BD-BC69-77BCCB9B0670}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{A0A3BD81-4D5F-45BD-BC69-77BCCB9B0670}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{A0A3BD81-4D5F-45BD-BC69-77BCCB9B0670}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {800733AB-B5F3-4E25-A1EE-54D92F203662}
+	EndGlobalSection
+EndGlobal

ConsoleApp1/ConsoleApp1.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
+  </PropertyGroup>
+
+</Project>

ConsoleApp1/Program.cs

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+using System;
+using System.Collections.Generic;
+
+namespace ConsoleApp1
+{
+    public class Program
+    {
+        public static Dictionary<string, string> Func(Dictionary<string, Dictionary<string, Dictionary<string, string>>> dict)
+        {
+            Dictionary<string, string> dictresult = new Dictionary<string, string>();
+            string path = "";
+            foreach (var a in dict)
+            {
+                    path = a.Key + "/";
+                    foreach (var b in a.Value)
+                    {
+                            path += b.Key + "/";
+                            foreach (var c in b.Value)
+                            {
+                                 dictresult.Add(path + c.Key, c.Value);
+                            }
+                    }
+            }
+            return dictresult;
+        }
+        static void Main(string[] args)
+        {
+            Dictionary<string, Dictionary<string, Dictionary<string, string>>> dict = new Dictionary<string, Dictionary<string, Dictionary<string, string>>>();
+            dict.Add("a", new Dictionary<string, Dictionary<string, string>>());
+            dict["a"].Add("b", new Dictionary<string, string>());
+            dict["a"]["b"].Add("c", "12");
+            dict["a"]["b"].Add("d", "Hello World");
+            foreach (var a in Func(dict))
+            {
+                Console.Write(a + " ");
+            }
+        }
+    }
+};

XUnitTest/UnitTest1.cs

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+using System.Collections.Generic;
+using Xunit;
+
+namespace ConsoleApp1
+{
+    public class UnitTest1
+    {
+        [Fact]
+        public void CorrectTest()
+        {
+            Dictionary<string, Dictionary<string, Dictionary<string, string>>> dict = new Dictionary<string, Dictionary<string, Dictionary<string, string>>>();
+            dict.Add("a", new Dictionary<string, Dictionary<string, string>>());
+            dict["a"].Add("b", new Dictionary<string, string>());
+            dict["a"]["b"].Add("c", "12");
+            dict["a"]["b"].Add("d", "Hello World");
+            Dictionary<string, string> correct = new Dictionary<string, string>();
+            correct.Add("a/b/c", "12");
+            correct.Add("a/b/d", "Hello World");
+            Assert.Equal(correct, Program.Func(dict));
+        }
+
+        [Fact]
+        public void EmptyTest()
+        {
+            Dictionary<string, Dictionary<string, Dictionary<string, string>>> dict = new Dictionary<string, Dictionary<string, Dictionary<string, string>>>();
+            Assert.Equal(new Dictionary<string, string>(), Program.Func(dict));
+        }
+    }
+}

XUnitTest/XUnitTest.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
+
+    <IsPackable>false</IsPackable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.2.0" />
+    <PackageReference Include="xunit" Version="2.4.0" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.0" />
+    <PackageReference Include="coverlet.collector" Version="1.0.1" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\ConsoleApp1\ConsoleApp1.csproj" />
+  </ItemGroup>
+
+</Project>