Add project files.

Lottoszamok.slnx

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+<Solution>
+  <Project Path="Lottoszamok/Lottoszamok.csproj" />
+</Solution>

Lottoszamok/App.config

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

Lottoszamok/Lottoszamok.csproj

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+<?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>{C4D194DB-89FD-448B-9D3E-B5E9B7E355EE}</ProjectGuid>
+    <OutputType>Exe</OutputType>
+    <RootNamespace>Lottoszamok</RootNamespace>
+    <AssemblyName>Lottoszamok</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>
+  <ItemGroup>
+    <Content Include="lottosz.txt" />
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+</Project>

Lottoszamok/Program.cs

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+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Lottoszamok
+{
+    internal class Program
+    {
+        static void Main(string[] args)
+        {
+
+
+            Console.WriteLine("1.Feladat");
+            Console.WriteLine("Kérem az 52. hét hiányzó számait");
+
+
+            string bekertszamok = Console.ReadLine();
+
+            List<string> lottoszamok = new List<string>();
+
+            StreamReader sr = new StreamReader(@"..\..\lottosz.txt");
+
+            while (!sr.EndOfStream)
+            {
+                lottoszamok.Add(sr.ReadLine());
+            }
+            sr.Close();
+
+
+
+
+            bekertszamok = bekertszamok.Trim();
+            List<string> bekertszamokdb_olva = bekertszamok.Split(' ').ToList();
+            bekertszamokdb_olva.Sort();
+
+            bekertszamok = "";
+            foreach (var szam in bekertszamokdb_olva)
+            {
+                bekertszamok = bekertszamok + ' ' + szam.ToString();
+            }
+            bekertszamok = bekertszamok.Trim();
+
+
+
+            Console.WriteLine($"A számok rendezve: {bekertszamok}");
+            Console.WriteLine("3.Feladat");
+            Console.WriteLine("Add meg melyik hetet vetítsem");
+            int valasztotthet = int.Parse(Console.ReadLine());
+            Console.WriteLine($"4.Feladat\nA választott hét lottószámai: {lottoszamok[valasztotthet]}");
+
+
+            List<int> huzhatoszamok = new List<int>();
+
+            for (int i = 1; i < 91; i++)
+            {
+                huzhatoszamok.Add(i);
+            }
+
+
+
+            List<int> latottszamok = new List<int>();
+
+            foreach (var item in lottoszamok)
+            {
+
+                string[] szamfelbontvatemp = item.Split(' ');
+
+                foreach (var item1 in szamfelbontvatemp)
+                {
+                    if (!latottszamok.Contains(int.Parse(item1)))
+                    {
+                        latottszamok.Add(int.Parse(item1));
+                    }
+                }
+
+
+
+                
+            }
+
+            foreach (var item in lottoszamok)
+                //ezeket a lottoszámokat még fel kell darabolni
+            {
+                if (!latottszamok.Contains(int.Parse(item)))
+                {
+                    Console.WriteLine($"nem látott szám: {item}");
+                }
+            }
+
+
+
+
+            //5.feladat maj megy ide
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+            /*
+            foreach (var item in lottoszamok)
+            {
+                Console.WriteLine(item);
+            }
+            */
+
+            StreamWriter sw = new StreamWriter(@"..\..\lotto52.txt");
+
+            
+            /*
+            sw.Write($"\n{bekertszamok}");
+            sw.Close();
+            */
+
+        }
+    }
+}

Lottoszamok/Properties/AssemblyInfo.cs

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+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("Lottoszamok")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("Lottoszamok")]
+[assembly: AssemblyCopyright("Copyright ©  2026")]
+[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("c4d194db-89fd-448b-9d3e-b5e9b7e355ee")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version
+//      Build Number
+//      Revision
+//
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

Lottoszamok/lottosz.txt

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+37 42 44 61 62
+18 42 54 83 89
+5 12 31 53 60
+1 28 47 56 70
+54 56 57 59 71
+7 21 33 39 86
+21 29 37 48 68
+10 21 29 40 87
+13 33 73 77 78
+2 23 65 71 84
+3 21 28 30 33
+23 31 42 73 85
+4 23 42 61 64
+17 60 66 71 85
+12 60 66 67 72
+46 50 58 62 76
+20 32 43 65 73
+55 56 58 61 71
+18 38 41 67 89
+32 41 59 66 79
+25 35 37 74 86
+1 45 60 61 82
+7 20 35 58 83
+7 37 40 46 51
+2 6 47 74 80
+1 5 22 44 88
+23 33 34 71 89
+4 56 74 77 89
+17 18 51 52 75
+7 29 30 77 80
+17 18 28 35 90
+6 24 25 53 79
+7 12 18 38 90
+25 28 45 55 74
+10 29 60 74 86
+7 24 25 50 76
+20 40 52 54 90
+16 30 81 83 87
+20 22 23 50 67
+59 68 75 80 85
+32 45 55 70 78
+13 40 55 56 76
+3 14 24 73 83
+23 25 28 66 76
+24 33 34 39 54
+12 28 34 61 70
+1 4 8 69 74
+4 15 46 49 59
+24 31 67 71 73
+12 26 36 46 49
+9 20 21 59 68