buborek rendezes

This commit is contained in:
szabomarton 2024-12-12 10:12:57 +01:00
parent b5ae918593
commit 306c0efbb7
41 changed files with 1731 additions and 0 deletions

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;
using System.Net.Http.Headers;
namespace ConsoleApp1
{
public static class AOC
{
public static List<int> first = new List<int>();
public static List<int> second = new List<int>();
}
internal class Program
{
public static int Binariskeres(int[] tomb, int keresettertek)
{
int eleje = 0;
int vege = tomb.Length - 1;
while (eleje <= vege)
{
int i = (eleje + vege) / 2;
if (tomb[i] == keresettertek)
{
return i;
}
else if (tomb[i] < keresettertek)
{
eleje = i + 1;
}
else if (tomb[i] > keresettertek)
{
vege = i - 1;
}
}
return -1;
}
public static int BinariskeresRekurziv(int[] tomb, int keresettertek, int eleje, int vege)
{
int mid = (eleje + vege) / 2;
if (vege < 1)
{
return -1;
}
if (tomb[mid] == keresettertek) { return mid; }
if (tomb[mid] > keresettertek)
{
return BinariskeresRekurziv(tomb, keresettertek, eleje, mid - 1);
}
return BinariskeresRekurziv(tomb, keresettertek, mid + 1, vege);
}
public static void Orai()
{
var tomb = new int[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 };
int index = Binariskeres(tomb, 8);
int index2 = BinariskeresRekurziv(tomb, 1, 0, tomb.Length);
int index3 = Binariskeres(tomb, 18); //-1, mert nincs ilyen
//int index = Array.BinarySearch(tomb, 8);
Console.WriteLine("A nyolcas indexe: {0}", index);
Console.WriteLine("Az egyes indexe: {0}", index2);
Console.WriteLine("Az 18 indexe: {0}", index3);
Console.WriteLine();
}
public static void ReadingInput(string path)
{
FileStream fileStream = new FileStream(path, FileMode.Open, FileAccess.Read);
StreamReader streamReader = new StreamReader(fileStream);
string line = streamReader.ReadLine();
while (line != null)
{
string[] parts = line.Split(new string[] { " " }, StringSplitOptions.RemoveEmptyEntries);
int value1 = Convert.ToInt32(parts[0]);
int value2 = Convert.ToInt32(parts[1]);
AOC.first.Add(value1);
AOC.second.Add(value2);
line = streamReader.ReadLine();
}
streamReader.Close();
fileStream.Close();
}
public static void BubiSort()
{
int[] t = new int[] { 5,4,4,8,73,4,58,4,3,78,2,84,456,69};
int n = t.Length;
for (int i = 0; i < n; i++)
{
Console.WriteLine($"{t[i]}");
}
for (int i = n -1;i > 0; i--)
{
for (int j = 0; j < i; j++)
{
if (t[j] > t[j+1])
{
int tmp = t[j + 1];
t[j+1] = t[j];
t[j] = tmp;
}
}
}
}
public static int[] Buborekrendezes(int[] bemenet)
{
int[] tomb = new int[bemenet.Length];
Array.Copy(bemenet, tomb, bemenet.Length);
var csere = true;
for (int i = tomb.Length - 1; i >= 0 && csere; i--)
{
csere = false;
for (int j = 0; j < i; j++)
{
if (tomb[j] > tomb[j + 1])
{
int tmp = tomb[j];
tomb[j] = tomb[j + 1];
tomb[j + 1] = tmp;
csere = true ;
}
}
}
return tomb;
}
public static void AOC_1(int[] array1, int[] array2)
{
List<int> differences = new List<int>();
for (int i = 0; i < array1.Length; i++)
{
int diff = Math.Abs(array1[i] - array2[i]);
differences.Add(diff);
//Console.WriteLine(diff);
//Console.WriteLine($"{array1[i]} - {array2[i]} = {diff}");
}
Console.WriteLine(differences.Sum());
}
static void Main(string[] args)
{
string path = $@"C:\Users\szabomarton\Desktop\C#\ProgaOra\20241212\input.txt";
ReadingInput(path);
AOC.first.Sort();
AOC.second.Sort();
AOC_1(AOC.first.ToArray(), AOC.second.ToArray());
}
}
}

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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.
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[assembly: AssemblyDescription("")]
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[assembly: AssemblyCompany("")]
[assembly: AssemblyProduct("ConsoleApp1")]
[assembly: AssemblyCopyright("Copyright © 2024")]
[assembly: AssemblyTrademark("")]
[assembly: AssemblyCulture("")]
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// 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("00e423c5-bab5-4a54-b15c-7a3bddcb868f")]
// 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")]

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

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using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Reflection.Emit;
using System.Text;
using System.Threading.Tasks;
namespace ConsoleApp2
{
public static class AOC
{
public static List<int> first = new List<int>();
public static List<int> second = new List<int>();
public static Dictionary<int, int> keyValuePairs = new Dictionary<int, int>();
}
internal class Program
{
public static void ReadingInput(string path)
{
FileStream fileStream = new FileStream(path, FileMode.Open, FileAccess.Read);
StreamReader streamReader = new StreamReader(fileStream);
string line = streamReader.ReadLine();
while (line != null)
{
string[] parts = line.Split(new string[] { " " }, StringSplitOptions.RemoveEmptyEntries);
int value1 = Convert.ToInt32(parts[0]);
int value2 = Convert.ToInt32(parts[1]);
AOC.first.Add(value1);
AOC.second.Add(value2);
line = streamReader.ReadLine();
}
streamReader.Close();
fileStream.Close();
}
public static void AOC_2(int[] array1, int[] array2)
{
foreach (var item in array1)
{
if (AOC.keyValuePairs.ContainsKey(item))
{
if (array2.Contains(item))
{
int num = array2.Count(x => x == item);
AOC.keyValuePairs[item] += num;
}
else
{
AOC.keyValuePairs.Add(item, 0);
}
} else
{
if (array2.Contains(item))
{
int num = array2.Count(x => x == item);
AOC.keyValuePairs.Add(item, num);
}
else
{
AOC.keyValuePairs.Add(item, 0);
}
}
}
int sol = 0;
foreach (var item in AOC.keyValuePairs)
{
sol += item.Key * item.Value;
Console.WriteLine($"{item.Key} - {item.Value}");
}
Console.WriteLine(sol);
}
static void Main(string[] args)
{
string path = $@"C:\Users\szabomarton\Desktop\C#\ProgaOra\20241212\input.txt";
ReadingInput(path);
/*
AOC.first.Add(3);
AOC.first.Add(4);
AOC.first.Add(2);
AOC.first.Add(1);
AOC.first.Add(3);
AOC.first.Add(3);
AOC.second.Add(4);
AOC.second.Add(3);
AOC.second.Add(5);
AOC.second.Add(3);
AOC.second.Add(9);
AOC.second.Add(3);
*/
AOC.first.Sort();
AOC.second.Sort();
AOC_2(AOC.first.ToArray(), AOC.second.ToArray());
}
}
}

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@ -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("ConsoleApp2")]
[assembly: AssemblyDescription("")]
[assembly: AssemblyConfiguration("")]
[assembly: AssemblyCompany("")]
[assembly: AssemblyProduct("ConsoleApp2")]
[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("552418a1-8d09-4931-bcac-f8de2494cc65")]
// 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")]

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@ -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>

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

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137ddb1975586287657f37337b64d051167bb6a147915d9fb5b8eb94b1093509

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@ -0,0 +1,7 @@
C:\Users\szabomarton\Desktop\C#\ProgaOra\20241212\ConsoleApp2\ConsoleApp2\bin\Debug\ConsoleApp2.exe.config
C:\Users\szabomarton\Desktop\C#\ProgaOra\20241212\ConsoleApp2\ConsoleApp2\bin\Debug\ConsoleApp2.exe
C:\Users\szabomarton\Desktop\C#\ProgaOra\20241212\ConsoleApp2\ConsoleApp2\bin\Debug\ConsoleApp2.pdb
C:\Users\szabomarton\Desktop\C#\ProgaOra\20241212\ConsoleApp2\ConsoleApp2\obj\Debug\ConsoleApp2.csproj.AssemblyReference.cache
C:\Users\szabomarton\Desktop\C#\ProgaOra\20241212\ConsoleApp2\ConsoleApp2\obj\Debug\ConsoleApp2.csproj.CoreCompileInputs.cache
C:\Users\szabomarton\Desktop\C#\ProgaOra\20241212\ConsoleApp2\ConsoleApp2\obj\Debug\ConsoleApp2.exe
C:\Users\szabomarton\Desktop\C#\ProgaOra\20241212\ConsoleApp2\ConsoleApp2\obj\Debug\ConsoleApp2.pdb

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20241212/Órai1212.pdf Normal file

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@ -336,3 +336,32 @@ Hashmaps alapjai
Fontos azonban megjegyezni, hogy a tényleges teljesítmény olyan tényezőktől függően változhat, mint az elemek száma, a hash kód ütközései és a terhalési tényező. Fontos azonban megjegyezni, hogy a tényleges teljesítmény olyan tényezőktől függően változhat, mint az elemek száma, a hash kód ütközései és a terhalési tényező.
Bináris Keresés
A bináris - más néven logaritmikus vagy felező módszer -
mivel n elem esetén log(n) futási idővel rendelkezik.
A bináris keresés egy erősen optimalizált keresési eljárás,
amely csak rendezett adatsoron alkalmazható.
Pélédául, amikor egy nyomtatott szótárban keresünk egy szót vagy jelenléti íven keressük a nevünket.
A keresett értéket egy mintaadattal összehasonlítjuk és az eredménytől függően - amennyire lehet -
egy nagy részt kizárunk a tartományból.
A módszer külön implementációt nem igényel, mivel az Array és a list osztály os tartalmaz bináris keresésre implementációt.
int index = Array.BinarySearch(Array array, object value);
Buborékrendezés
A rendezés során a tömb fennmaradó részén végighaladva az egymás utáni szomszédos elemeket összehasonlítjuk, és ha szükséges, megcseréljük őket, hogy közölük mindig a nagyobb helyezkedjen el feljebb.
Pszeudokód:
Ciklus i = 6 -tól 1-ig
Ciklus j = 0-tól i-1-ig
Ha a[j] > a [j+1] AKKOR
csere a[j] a[j+1]
Az algoritmusnak csak akkor van értelme tovább futnia, ha a belső ciklusban volt csere.
A javított algoritmus futási ideje legjobb esetben lineáris lesz,
legrosszabb esetben pedig négyzetes.