update3

Fibonacci/App.config

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
+    </startup>
+</configuration>

Fibonacci/Fibonacci.csproj

@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{FAE7220C-8E06-4D42-B54C-573A60584C51}</ProjectGuid>
+    <OutputType>Exe</OutputType>
+    <RootNamespace>Fibonacci</RootNamespace>
+    <AssemblyName>Fibonacci</AssemblyName>
+    <TargetFrameworkVersion>v4.7.2</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
+    <Deterministic>true</Deterministic>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Net.Http" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="App.config" />
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+</Project>

Fibonacci/Program.cs

@@ -0,0 +1,32 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Fibonacci {
+    internal class Program {
+        public static ulong fibonacci(int darab) {
+            if ((darab == 0) || (darab == 1)) {
+                return Convert.ToUInt64(darab);
+            } else {
+                return fibonacci(darab - 1) + fibonacci(darab - 2);
+            }
+        }
+
+        static void Main(string[] args) {
+            Console.WriteLine("Adja meg hány számot akar látni");
+            ulong darab = Convert.ToUInt64(Console.ReadLine());
+          
+            ulong a = 0, b = 1, szamlalo = 0;
+            while (szamlalo++ < darab) {
+                b += a;
+                a = b - a;
+
+                Console.WriteLine(b);
+            }
+          
+            Console.ReadKey();
+        }
+    }
+}

Fibonacci/Properties/AssemblyInfo.cs

@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("Fibonacci")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("Fibonacci")]
+[assembly: AssemblyCopyright("Copyright ©  2022")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible
+// to COM components.  If you need to access a type in this assembly from
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("fae7220c-8e06-4d42-b54c-573a60584c51")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

Fibonacci/bin/Debug/Fibonacci.exe.config

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
+    </startup>
+</configuration>

Fibonacci/obj/Debug/.NETFramework,Version=v4.7.2.AssemblyAttributes.cs

@@ -0,0 +1,4 @@
+// <autogenerated />
+using System;
+using System.Reflection;
+[assembly: global::System.Runtime.Versioning.TargetFrameworkAttribute(".NETFramework,Version=v4.7.2", FrameworkDisplayName = ".NET Framework 4.7.2")]

Fibonacci/obj/Debug/Fibonacci.csproj.CoreCompileInputs.cache

@@ -0,0 +1 @@
+7f4b213b428f4c013f19137338418ee1f5525793

Fibonacci/obj/Debug/Fibonacci.csproj.FileListAbsolute.txt

@@ -0,0 +1,8 @@
+C:\dev\c#\Fibonacci\bin\Debug\Fibonacci.exe.config
+C:\dev\c#\Fibonacci\bin\Debug\Fibonacci.exe
+C:\dev\c#\Fibonacci\bin\Debug\Fibonacci.pdb
+C:\dev\c#\Fibonacci\obj\Debug\Fibonacci.csproj.AssemblyReference.cache
+C:\dev\c#\Fibonacci\obj\Debug\Fibonacci.csproj.SuggestedBindingRedirects.cache
+C:\dev\c#\Fibonacci\obj\Debug\Fibonacci.csproj.CoreCompileInputs.cache
+C:\dev\c#\Fibonacci\obj\Debug\Fibonacci.exe
+C:\dev\c#\Fibonacci\obj\Debug\Fibonacci.pdb

ForAndForEach/Program.cs

@@ -17,7 +17,7 @@ namespace ForAndForEach {
             for (int i = 0; i < list.Count; i++) {
                 Console.WriteLine(list[i]);
             }
-            Console.WriteLine();
+            Console.WriteLine("\nforeach:");
 
             foreach(int i in list) {
                 Console.WriteLine(i);

ForAndForEach/obj/Debug/ForAndForEach.csproj.FileListAbsolute.txt

@@ -6,3 +6,11 @@ C:\dev\c#\c-sharp\ForAndForEach\obj\Debug\ForAndForEach.csproj.SuggestedBindingR
 C:\dev\c#\c-sharp\ForAndForEach\obj\Debug\ForAndForEach.csproj.CoreCompileInputs.cache
 C:\dev\c#\c-sharp\ForAndForEach\obj\Debug\ForAndForEach.exe
 C:\dev\c#\c-sharp\ForAndForEach\obj\Debug\ForAndForEach.pdb
+C:\dev\c#\ForAndForEach\bin\Debug\ForAndForEach.exe.config
+C:\dev\c#\ForAndForEach\bin\Debug\ForAndForEach.exe
+C:\dev\c#\ForAndForEach\bin\Debug\ForAndForEach.pdb
+C:\dev\c#\ForAndForEach\obj\Debug\ForAndForEach.csproj.AssemblyReference.cache
+C:\dev\c#\ForAndForEach\obj\Debug\ForAndForEach.csproj.SuggestedBindingRedirects.cache
+C:\dev\c#\ForAndForEach\obj\Debug\ForAndForEach.csproj.CoreCompileInputs.cache
+C:\dev\c#\ForAndForEach\obj\Debug\ForAndForEach.exe
+C:\dev\c#\ForAndForEach\obj\Debug\ForAndForEach.pdb

c-sharp.sln

@@ -45,6 +45,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Elagazas", "Elagazas\Elagaz
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ForAndForEach", "ForAndForEach\ForAndForEach.csproj", "{27F3C28C-7F88-42AC-9B27-5D69E35B6803}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Fibonacci", "Fibonacci\Fibonacci.csproj", "{FAE7220C-8E06-4D42-B54C-573A60584C51}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -135,6 +137,10 @@ Global
 		{27F3C28C-7F88-42AC-9B27-5D69E35B6803}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{27F3C28C-7F88-42AC-9B27-5D69E35B6803}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{27F3C28C-7F88-42AC-9B27-5D69E35B6803}.Release|Any CPU.Build.0 = Release|Any CPU
+		{FAE7220C-8E06-4D42-B54C-573A60584C51}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{FAE7220C-8E06-4D42-B54C-573A60584C51}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{FAE7220C-8E06-4D42-B54C-573A60584C51}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{FAE7220C-8E06-4D42-B54C-573A60584C51}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE