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index 0000000..c11410e
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diff --git a/20241211/ConsoleApp1/.vs/ConsoleApp1/v17/.suo b/20241211/ConsoleApp1/.vs/ConsoleApp1/v17/.suo
new file mode 100644
index 0000000..22c7467
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diff --git a/20241211/ConsoleApp1/.vs/ConsoleApp1/v17/DocumentLayout.backup.json b/20241211/ConsoleApp1/.vs/ConsoleApp1/v17/DocumentLayout.backup.json
new file mode 100644
index 0000000..f724727
--- /dev/null
+++ b/20241211/ConsoleApp1/.vs/ConsoleApp1/v17/DocumentLayout.backup.json
@@ -0,0 +1,37 @@
+{
+  "Version": 1,
+  "WorkspaceRootPath": "C:\\Users\\szabomarton\\Desktop\\ProgaOra\\20241211\\ConsoleApp1\\",
+  "Documents": [
+    {
+      "AbsoluteMoniker": "D:0:0:{739D9B3E-908C-4CF7-AC6C-935E32BD80A9}|ConsoleApp1\\ConsoleApp1.csproj|c:\\users\\szabomarton\\desktop\\progaora\\20241211\\consoleapp1\\consoleapp1\\program.cs||{A6C744A8-0E4A-4FC6-886A-064283054674}",
+      "RelativeMoniker": "D:0:0:{739D9B3E-908C-4CF7-AC6C-935E32BD80A9}|ConsoleApp1\\ConsoleApp1.csproj|solutionrelative:consoleapp1\\program.cs||{A6C744A8-0E4A-4FC6-886A-064283054674}"
+    }
+  ],
+  "DocumentGroupContainers": [
+    {
+      "Orientation": 0,
+      "VerticalTabListWidth": 256,
+      "DocumentGroups": [
+        {
+          "DockedWidth": 200,
+          "SelectedChildIndex": 0,
+          "Children": [
+            {
+              "$type": "Document",
+              "DocumentIndex": 0,
+              "Title": "Program.cs",
+              "DocumentMoniker": "C:\\Users\\szabomarton\\Desktop\\ProgaOra\\20241211\\ConsoleApp1\\ConsoleApp1\\Program.cs",
+              "RelativeDocumentMoniker": "ConsoleApp1\\Program.cs",
+              "ToolTip": "C:\\Users\\szabomarton\\Desktop\\ProgaOra\\20241211\\ConsoleApp1\\ConsoleApp1\\Program.cs",
+              "RelativeToolTip": "ConsoleApp1\\Program.cs",
+              "ViewState": "AgIAAAAAAAAAAAAAAAAAAA4AAAAvAAAAAAAAAA==",
+              "Icon": "ae27a6b0-e345-4288-96df-5eaf394ee369.000738|",
+              "WhenOpened": "2024-12-11T10:49:21.599Z",
+              "EditorCaption": ""
+            }
+          ]
+        }
+      ]
+    }
+  ]
+}
\ No newline at end of file
diff --git a/20241211/ConsoleApp1/.vs/ConsoleApp1/v17/DocumentLayout.json b/20241211/ConsoleApp1/.vs/ConsoleApp1/v17/DocumentLayout.json
new file mode 100644
index 0000000..1abc3aa
--- /dev/null
+++ b/20241211/ConsoleApp1/.vs/ConsoleApp1/v17/DocumentLayout.json
@@ -0,0 +1,37 @@
+{
+  "Version": 1,
+  "WorkspaceRootPath": "C:\\Users\\szabomarton\\Desktop\\ProgaOra\\20241211\\ConsoleApp1\\",
+  "Documents": [
+    {
+      "AbsoluteMoniker": "D:0:0:{739D9B3E-908C-4CF7-AC6C-935E32BD80A9}|ConsoleApp1\\ConsoleApp1.csproj|c:\\users\\szabomarton\\desktop\\progaora\\20241211\\consoleapp1\\consoleapp1\\program.cs||{A6C744A8-0E4A-4FC6-886A-064283054674}",
+      "RelativeMoniker": "D:0:0:{739D9B3E-908C-4CF7-AC6C-935E32BD80A9}|ConsoleApp1\\ConsoleApp1.csproj|solutionrelative:consoleapp1\\program.cs||{A6C744A8-0E4A-4FC6-886A-064283054674}"
+    }
+  ],
+  "DocumentGroupContainers": [
+    {
+      "Orientation": 0,
+      "VerticalTabListWidth": 256,
+      "DocumentGroups": [
+        {
+          "DockedWidth": 200,
+          "SelectedChildIndex": 0,
+          "Children": [
+            {
+              "$type": "Document",
+              "DocumentIndex": 0,
+              "Title": "Program.cs",
+              "DocumentMoniker": "C:\\Users\\szabomarton\\Desktop\\ProgaOra\\20241211\\ConsoleApp1\\ConsoleApp1\\Program.cs",
+              "RelativeDocumentMoniker": "ConsoleApp1\\Program.cs",
+              "ToolTip": "C:\\Users\\szabomarton\\Desktop\\ProgaOra\\20241211\\ConsoleApp1\\ConsoleApp1\\Program.cs",
+              "RelativeToolTip": "ConsoleApp1\\Program.cs",
+              "ViewState": "AgIAAAAAAAAAAAAAAAAAAA4AAAAAAAAAAAAAAA==",
+              "Icon": "ae27a6b0-e345-4288-96df-5eaf394ee369.000738|",
+              "WhenOpened": "2024-12-11T10:49:21.599Z",
+              "EditorCaption": ""
+            }
+          ]
+        }
+      ]
+    }
+  ]
+}
\ No newline at end of file
diff --git a/20241211/ConsoleApp1/ConsoleApp1.sln b/20241211/ConsoleApp1/ConsoleApp1.sln
new file mode 100644
index 0000000..3b01eb3
--- /dev/null
+++ b/20241211/ConsoleApp1/ConsoleApp1.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.11.35222.181
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ConsoleApp1", "ConsoleApp1\ConsoleApp1.csproj", "{739D9B3E-908C-4CF7-AC6C-935E32BD80A9}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{739D9B3E-908C-4CF7-AC6C-935E32BD80A9}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{739D9B3E-908C-4CF7-AC6C-935E32BD80A9}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{739D9B3E-908C-4CF7-AC6C-935E32BD80A9}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{739D9B3E-908C-4CF7-AC6C-935E32BD80A9}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {6C7614B5-D7F7-4F6B-BF0D-F5963FC333F2}
+	EndGlobalSection
+EndGlobal
diff --git a/20241211/ConsoleApp1/ConsoleApp1/App.config b/20241211/ConsoleApp1/ConsoleApp1/App.config
new file mode 100644
index 0000000..56efbc7
--- /dev/null
+++ b/20241211/ConsoleApp1/ConsoleApp1/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>
\ No newline at end of file
diff --git a/20241211/ConsoleApp1/ConsoleApp1/ConsoleApp1.csproj b/20241211/ConsoleApp1/ConsoleApp1/ConsoleApp1.csproj
new file mode 100644
index 0000000..23f8968
--- /dev/null
+++ b/20241211/ConsoleApp1/ConsoleApp1/ConsoleApp1.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>{739D9B3E-908C-4CF7-AC6C-935E32BD80A9}</ProjectGuid>
+    <OutputType>Exe</OutputType>
+    <RootNamespace>ConsoleApp1</RootNamespace>
+    <AssemblyName>ConsoleApp1</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>
\ No newline at end of file
diff --git a/20241211/ConsoleApp1/ConsoleApp1/Program.cs b/20241211/ConsoleApp1/ConsoleApp1/Program.cs
new file mode 100644
index 0000000..40d5f02
--- /dev/null
+++ b/20241211/ConsoleApp1/ConsoleApp1/Program.cs
@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConsoleApp1
+{
+    internal class Program
+    {
+        static void Main(string[] args)
+        {
+            Dictionary<string, int> ageMap = new Dictionary<string, int>();
+            ageMap.Add("Alice", 25);
+            Console.WriteLine(ageMap["Alice"]);
+        }
+    }
+}
diff --git a/20241211/ConsoleApp1/ConsoleApp1/Properties/AssemblyInfo.cs b/20241211/ConsoleApp1/ConsoleApp1/Properties/AssemblyInfo.cs
new file mode 100644
index 0000000..7278ecd
--- /dev/null
+++ b/20241211/ConsoleApp1/ConsoleApp1/Properties/AssemblyInfo.cs
@@ -0,0 +1,33 @@
+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("ConsoleApp1")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("ConsoleApp1")]
+[assembly: AssemblyCopyright("Copyright ©  2024")]
+[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("739d9b3e-908c-4cf7-ac6c-935e32bd80a9")]
+
+// 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")]
diff --git a/20241211/ConsoleApp1/ConsoleApp1/bin/Debug/ConsoleApp1.exe b/20241211/ConsoleApp1/ConsoleApp1/bin/Debug/ConsoleApp1.exe
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index 0000000..91d41c0
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diff --git a/20241211/ConsoleApp1/ConsoleApp1/bin/Debug/ConsoleApp1.exe.config b/20241211/ConsoleApp1/ConsoleApp1/bin/Debug/ConsoleApp1.exe.config
new file mode 100644
index 0000000..56efbc7
--- /dev/null
+++ b/20241211/ConsoleApp1/ConsoleApp1/bin/Debug/ConsoleApp1.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>
\ No newline at end of file
diff --git a/20241211/ConsoleApp1/ConsoleApp1/bin/Debug/ConsoleApp1.pdb b/20241211/ConsoleApp1/ConsoleApp1/bin/Debug/ConsoleApp1.pdb
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index 0000000..ee37c08
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diff --git a/20241211/ConsoleApp1/ConsoleApp1/obj/Debug/.NETFramework,Version=v4.7.2.AssemblyAttributes.cs b/20241211/ConsoleApp1/ConsoleApp1/obj/Debug/.NETFramework,Version=v4.7.2.AssemblyAttributes.cs
new file mode 100644
index 0000000..3871b18
--- /dev/null
+++ b/20241211/ConsoleApp1/ConsoleApp1/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")]
diff --git a/20241211/ConsoleApp1/ConsoleApp1/obj/Debug/ConsoleApp1.csproj.AssemblyReference.cache b/20241211/ConsoleApp1/ConsoleApp1/obj/Debug/ConsoleApp1.csproj.AssemblyReference.cache
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index 0000000..126ed02
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diff --git a/20241211/ConsoleApp1/ConsoleApp1/obj/Debug/ConsoleApp1.csproj.CoreCompileInputs.cache b/20241211/ConsoleApp1/ConsoleApp1/obj/Debug/ConsoleApp1.csproj.CoreCompileInputs.cache
new file mode 100644
index 0000000..0be8d26
--- /dev/null
+++ b/20241211/ConsoleApp1/ConsoleApp1/obj/Debug/ConsoleApp1.csproj.CoreCompileInputs.cache
@@ -0,0 +1 @@
+137ddb1975586287657f37337b64d051167bb6a147915d9fb5b8eb94b1093509
diff --git a/20241211/ConsoleApp1/ConsoleApp1/obj/Debug/ConsoleApp1.csproj.FileListAbsolute.txt b/20241211/ConsoleApp1/ConsoleApp1/obj/Debug/ConsoleApp1.csproj.FileListAbsolute.txt
new file mode 100644
index 0000000..813ce63
--- /dev/null
+++ b/20241211/ConsoleApp1/ConsoleApp1/obj/Debug/ConsoleApp1.csproj.FileListAbsolute.txt
@@ -0,0 +1,7 @@
+C:\Users\szabomarton\Desktop\ProgaOra\20241211\ConsoleApp1\ConsoleApp1\bin\Debug\ConsoleApp1.exe.config
+C:\Users\szabomarton\Desktop\ProgaOra\20241211\ConsoleApp1\ConsoleApp1\bin\Debug\ConsoleApp1.exe
+C:\Users\szabomarton\Desktop\ProgaOra\20241211\ConsoleApp1\ConsoleApp1\bin\Debug\ConsoleApp1.pdb
+C:\Users\szabomarton\Desktop\ProgaOra\20241211\ConsoleApp1\ConsoleApp1\obj\Debug\ConsoleApp1.csproj.AssemblyReference.cache
+C:\Users\szabomarton\Desktop\ProgaOra\20241211\ConsoleApp1\ConsoleApp1\obj\Debug\ConsoleApp1.csproj.CoreCompileInputs.cache
+C:\Users\szabomarton\Desktop\ProgaOra\20241211\ConsoleApp1\ConsoleApp1\obj\Debug\ConsoleApp1.exe
+C:\Users\szabomarton\Desktop\ProgaOra\20241211\ConsoleApp1\ConsoleApp1\obj\Debug\ConsoleApp1.pdb
diff --git a/20241211/ConsoleApp1/ConsoleApp1/obj/Debug/ConsoleApp1.exe b/20241211/ConsoleApp1/ConsoleApp1/obj/Debug/ConsoleApp1.exe
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index 0000000..91d41c0
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diff --git a/20241211/ConsoleApp1/ConsoleApp1/obj/Debug/ConsoleApp1.pdb b/20241211/ConsoleApp1/ConsoleApp1/obj/Debug/ConsoleApp1.pdb
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index 0000000..ee37c08
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diff --git a/20241211/ConsoleApp1/ConsoleApp1/obj/Debug/DesignTimeResolveAssemblyReferencesInput.cache b/20241211/ConsoleApp1/ConsoleApp1/obj/Debug/DesignTimeResolveAssemblyReferencesInput.cache
new file mode 100644
index 0000000..5ed2c27
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diff --git a/20241211/S1E7 - Adatszerkezetek I (Tömb, Lista, Hashset, Dictionary).mp4 b/20241211/S1E7 - Adatszerkezetek I (Tömb, Lista, Hashset, Dictionary).mp4
new file mode 100644
index 0000000..7454cd2
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diff --git a/adatstrukturak b/adatstrukturak
index 61d9029..c632281 100644
--- a/adatstrukturak
+++ b/adatstrukturak
@@ -278,4 +278,61 @@ Dictionary
         Bool ContainsValue(TValue)
         bool Remove(Tkey) // ha sikeres a művelet akkor true
         int Count()
-        void Clear() szótár ürítése
\ No newline at end of file
+        void Clear() szótár ürítése
+
+    Elemek összehasonlítása
+        Sok esetben lehet szükségünk az elemek sorba rendezésére,
+        ehhez a Syste.Collections.Generic.IComparer<T>
+        interfész megvalósító osztályra van szükségünk.
+        A T azon adattípus, amelyen majd összehasonlítást végzünk.
+
+    Ennek fő metódusai
+        int Compare (T x, T y):
+            összehasonlít két azonos típusú elemet, visszatérési értéke:
+                negatív ha x kisebb mint y
+                nulla, ha x egyenlő y
+                pozitív ha x nagyobb mint y
+    
+Hashmaps alapjai
+    A Hashmaps hatékony megoldást kínál az adatok hatékony tárolására ás visszakeresésére.
+    A C# ban a HashMaps-t a Dictionary <Tkey, Tvalue> osztály képviseli,
+    amely alapvető eszközként szolgál a kulcs értél párok kezeléséhez.
+    Lényegében a HashMap kulcs-érték asszociációk gyűjteményeként működik,
+    lehetővé téve azb egyedi kulcsokon alapuló értékekhez valóü gyors hozzáférést.
+
+    A Hashmaps azon elven működik, hogy egyedi kulcsokat rendel hozzá a megfelelő értékekhez.
+    Ezek a kulcsok a társított értékek azonosítóként működnek, gyors hozzáférést biztosítva az adatokhoz
+    anélkül, hogy a teljes gyűjteményt végig kellene ismételni.
+
+    A C# nyelvben a HashMaps a Dictionary<Tkey, Tvalue>
+    osztály használatával példányosodik, amely a Tkey a kulcsok típusát,
+    a TValue pedig az értékek típusát jelöli.
+
+    Dictionary<string, int> ageMap = new Dictionary<string, int>();
+
+    HashMap műveletek
+    Elemek hozzáadása és visszakeresésére
+    A HashMap-hez elemek hozzáadása magában foglalja az Add() metódust,
+    amely értéket rendel egy adott kulcshoz.
+
+    Az értékek lekérése a HashMap-ról úgy érhető el, hogy az értéket a megfelelő kulcsokkal érik el.
+    int ageOfAlice = ageMap["Alice"];
+
+    Létezés ellenőrzése
+    .ContainsKey(TKey)
+
+    Elemek eltávolítása
+    .Remove(TKey)
+
+    Iterálás a HashMap-bemenet
+        használj foreach ciklust
+        minden elem kulcs érték párt add vissza
+
+    HashMap teljesítménye
+        A HashMap CSharpban kiváló teljesítményjellemzőket kínál a visszakeresési beillesztési és törlési műveletekhez.
+        Az alapul szolgáló megvalósítás hash kódokat használ az elemek hatékony lokalizálására és kezelésére, ami állandó idejű O1
+        bonyulultságot eredményet a legtöbb műveletnél.
+
+        Fontos azonban megjegyezni, hogy a tényleges teljesítmény olyan tényezőktől függően változhat, mint az elemek száma, a hash kód ütközései és a terhalési tényező.
+
+