Zahlen in zufälliger Reihenfolge

Elderan · Sep 10, 2011

Hier mein einzeiler, in Anlehnung an

echo '0 1 2 3 ... 9999' > random.txt

CiscoKid · Sep 22, 2011

Hier mein Einzeiler in C:

Code:

main(){int i=10000,z=i,x,n[i*2];srand(time(0));while(i)(n[x=rand()%z])?:printf("%04d\n",x,i--,n[x]++);}

Ich wollte eigentlich unter 100 Zeichen kommen, aber 104 klingen auch gut.
Hat wer Ideen, wie (ob) man den noch kürzer bekommt?

Thulsadum · Dez 21, 2011

Ein wenig langweilig, aber doch schnell geschrieben in Shellscript (zsh getestet):

Code:

for i in {0000..9999}; do echo $i; done| shuf > zahlen.txt

elite-noob · Dez 28, 2011

Hier das ganze mal für Windows User ;-)
Habe das mal iN Powershell geschrieben, nicht unbedingt Performant, aber immerhin ;-)

Code:

[FONT=Courier New][SIZE=2][COLOR=#5f9ea0][FONT=Courier New][SIZE=2][COLOR=#5f9ea0]
[B][SIZE=2][FONT=Courier New][COLOR=#5f9ea0]cls[/COLOR][/FONT][/SIZE][/B]
[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080]$Zahl[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#ff0000][FONT=Courier New][SIZE=2][COLOR=#ff0000][FONT=Courier New][SIZE=2][COLOR=#ff0000]=[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][B][FONT=Courier New][SIZE=2][COLOR=#5f9ea0][FONT=Courier New][SIZE=2][COLOR=#5f9ea0][FONT=Courier New][SIZE=2][COLOR=#5f9ea0]New-Object[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/B][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2] int[] 9999[/SIZE][/FONT]
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[SIZE=2][FONT=Courier New]{[/FONT][/SIZE]
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[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2]}[/SIZE][/FONT]
[/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff]for[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2] ([/SIZE][/FONT][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080]$i[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#ff0000][FONT=Courier New][SIZE=2][COLOR=#ff0000][FONT=Courier New][SIZE=2][COLOR=#ff0000]=[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2]0; [/SIZE][/FONT][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080]$i[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#ff0000][FONT=Courier New][SIZE=2][COLOR=#ff0000][FONT=Courier New][SIZE=2][COLOR=#ff0000]-le[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2] 9998; [/SIZE][/FONT][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080]$i[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2]++)[/SIZE][/FONT]
[SIZE=2][FONT=Courier New]{[/FONT][/SIZE]
[/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080]$x[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#ff0000][FONT=Courier New][SIZE=2][COLOR=#ff0000][FONT=Courier New][SIZE=2][COLOR=#ff0000]=[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080]$Zahl[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2][[/SIZE][/FONT][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080]$i[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2]][/SIZE][/FONT]
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[/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080]$Z[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#ff0000][FONT=Courier New][SIZE=2][COLOR=#ff0000][FONT=Courier New][SIZE=2][COLOR=#ff0000]=[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080]$Zahl[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2][[/SIZE][/FONT][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080]$y[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2]][/SIZE][/FONT]
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[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2]}[/SIZE][/FONT]
 
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[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT]

greetz
chris

t3rr0r.bYt3 · Dez 29, 2011

Thulsadum hat gesagt.:
Ein wenig langweilig, aber doch schnell geschrieben in Shellscript (zsh getestet):

Code:

for i in {0000..9999}; do echo $i; done| shuf > zahlen.txt

Das kriegen wir doch kürzer:

Code:

shuf -e {0000..9999} > zahlen.txt

Hackse · Jan 3, 2012

Code:

tr -dc 0-9 < /dev/urandom

CDW · Jan 3, 2012

Hackse hat gesagt.:
Code:

tr -dc 0-9 < /dev/urandom

sicher, dass die Ausgabe

alle Zahlen von 0000 bis 9999
...
Bsp:

1234
2345
0001
9991
usw.

entspricht

?

Hackse · Jan 3, 2012

Das kommt davon, wenn man im Halbschlaf nicht mehr richtig liest.

Watchme · Jan 23, 2012

Code:

REPORT  zrandom_numbers.

DATA: number(4) TYPE n,
      tab_numb  LIKE TABLE OF number,
      seed      TYPE i,
      v_random  TYPE REF TO cl_abap_random_int,
      next_int  TYPE i.

PARAMETERS: p_file TYPE string.

* Random - Generator anschmeißen:
seed = cl_abap_random=>seed( ).
v_random = cl_abap_random_int=>create( seed = seed min = 0000 max = 9999 ).

* Zufallszahlen rein
DO 9999 TIMES.
  next_int = v_random->get_next( ).
  number = next_int.
  READ TABLE tab_numb WITH KEY table_line = number TRANSPORTING NO FIELDS.
  IF sy-subrc IS NOT INITIAL.
    APPEND number TO tab_numb.
  ENDIF.
ENDDO.

* Ausgabe auf Bildschirm (und in Datei)
LOOP AT tab_numb into number.
  WRITE: / Number.
ENDLOOP.

cl_gui_frontend_services=>gui_download(
  EXPORTING
    filename                  = p_file
  CHANGING
    data_tab                  = tab_numb ).

AaFreak · Feb 2, 2012

So dann gebe ich auch mal eine Lösung in C# ab.

Code:

[COLOR=#008000][B]using[/B][/COLOR] System;
[COLOR=#008000][B]using[/B][/COLOR] System.Linq;
[COLOR=#008000][B]using[/B][/COLOR] System.IO;

[COLOR=#008000][B]namespace[/B][/COLOR] HaBo
{
  [COLOR=#ff0000]class[/COLOR] RandomNumbers
  {
    [COLOR=#0000ff][B]public[/B][/COLOR] [COLOR=#a52a2a]static[/COLOR] [COLOR=#ff0000]void[/COLOR] [COLOR=#191970][B]Main[/B][/COLOR]([COLOR=#ff0000]string[/COLOR][] args)
    {
       File.[COLOR=#191970][B]WriteAllText[/B][/COLOR]([COLOR=#0000ff]"random.txt"[/COLOR], 
          String.[COLOR=#191970][B]Join[/B][/COLOR](Environment.NewLine, 
             Enumerable.[COLOR=#191970][B]Range[/B][/COLOR]([COLOR=#00008b]0[/COLOR], [COLOR=#00008b]10000[/COLOR])
             .[COLOR=#191970][B]OrderBy[/B][/COLOR](x => Guid.[COLOR=#191970][B]NewGuid[/B][/COLOR]())
             .[COLOR=#191970][B]Select[/B][/COLOR](s => s.[COLOR=#191970][B]ToString[/B][/COLOR]([COLOR=#0000ff]"D4"[/COLOR]))));
    }
  }
}

C++0x · Sep 9, 2012

In C++, dürfte bisher das kürzeste in der Sprache sein:

Code:

#include <fstream>
#include <numeric>
#include <algorithm>
#include <iomanip>
#include <array>

using namespace std;

//Compile with -c++0x, uses C++11 features
int main()
{
    ofstream out("Test.txt");
    array<int, 10000> ar;
    for (int i = 0; i <= 9999; ++i)
        ar[i] = i;
    srand(unsigned(time(NULL)));
    random_shuffle(ar.begin(), ar.end());
    for (int i = 0; i <= 9999; ++i)
        out << setfill('0') << setw(4) << ar[i] << '\n';
    
    return 0;
}

foxtrot92 · Okt 17, 2012

Hi,
vieleicht nicht die perfekte Lösung aber es funktioniert so wie es soll :wink:
Python:

Code:

#!/usr/bin/python
import random
counter = 0
zahlen = []

f=open("output.txt", "w")
while counter <= 9999:
    counter = counter + 1
    cache = str(counter)
    if len(cache) == 1:
        zahlen.append("000"+cache+"\n")
    if len(cache) == 2:
        zahlen.append("00"+cache+"\n")
    if len(cache) == 3:
        zahlen.append("0"+cache+"\n")
    if len(cache) == 4:
        zahlen.append(cache+"\n")
random.shuffle(zahlen)
x = 0
while x <= 9999:
    f.write(zahlen[x])
    x = x + 1

xLastProphet · Mrz 5, 2013

kleine Lösung in Java...

Code:

iimport java.io.FileWriter;
import java.io.IOException;
import java.text.DecimalFormat;
import java.util.ArrayList;
import java.util.Collections;


public class Zufallszahlen {

    /**
     * @param args
     */
    @SuppressWarnings("unchecked")
    public static void main( String[] args ) {
	//Variablen initialisiern
	int random;
	String srandom;
	ArrayList<String> al = new ArrayList<String>();
	ArrayList<String> al2;
	FileWriter fw = null;
	final String LINE_SEPARATOR = System.getProperty("line.separator"); 
	
	while( al.size() < 10000 ) {
	    random = ( int )( ( Math.random() * 10000 + 1) );
	    DecimalFormat df = new DecimalFormat( "0000" );
	    srandom = df.format( random );
	    if( !al.contains( srandom ) ) {
		al.add( srandom );
	    } else {
		System.out.println("Gibt's schon");
	    }
		
	    
	}
	
	al2=( ArrayList<String> )al.clone();
	
	Collections.sort(al2);
	
	try {
	    fw  = new FileWriter("Zufall.txt");
	    System.out.println("Schreibe Zahlen in Datei 'Zufall.txt'");
	    for( int i=0; i < al.size(); i++ ) {
		
		fw.write( al.get( i ) + " | " + al2.get( i ) + LINE_SEPARATOR);
	    }
	    System.out.println("Fertig!");
	    
	} catch (IOException e) {
	    // TODO Auto-generated catch block
	    e.printStackTrace();
	} finally {
	    try {
		fw.close();
	    } catch (IOException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	    }
	}	
    }
}

v2.0 · Jan 2, 2015

meine lösung in java

Hier wäre dann noch meine Lösung.
Ist zwar etwas unschön mit der while(true)-Schleife aber es funktioniert.

Code:

import java.io.*;
import java.util.Random;

class ZahlenTXT {
    public static void main(String[] args) throws IOException  {
        
        FileWriter fw = new FileWriter("zahlen.txt");
        BufferedWriter bw = new BufferedWriter(fw);
        
        Random  rand = new Random();
        int array[] = new int [10000];
        StringBuffer zahl = new StringBuffer();
        String ausgabe = "";
        int zaehler = 0;
        int zufallszahl;
        
        for (int i=0; i < 10000; i++) {
            schleife:
            while (true) {
                zufallszahl = rand.nextInt(10000);
                for (int j=0; j <= zaehler; j++) {
                    if (zufallszahl == array[j]) {
                        break schleife;
                    }
                }
                
                if (zufallszahl < 10) {
                    zahl.append("000" + zufallszahl);
                } else if (zufallszahl < 100) {
                    zahl.append("00" + zufallszahl);
                } else if (zufallszahl < 1000) {
                    zahl.append("0" + zufallszahl);
                } else {
                    zahl.append(zufallszahl);
                }
                
                array[zaehler] = zufallszahl;
                zaehler++;
                
                ausgabe = zahl.toString();
                bw.write(ausgabe);
                bw.newLine();
                System.out.println(zahl);
                zahl.setLength(0);
                continue schleife;
            }
        }
        bw.close();
    }
}

schwedenmann · Jan 2, 2015

Python von einem Anfänger - interaktiv

Code:

#!/usr/bin/python
# -*- coding: utf-8 -*-                                                                                                                                                                                                                                                                                om
import os
import sys
import random 
oberegrenze = int(raw_input("Geben Sie eine Obergrenze fuer die Zufallszahlen ein: "))
 
for i in range (10):
    x = random.random ()
    x = x * oberegrenze
    if  int (x) == 0:
        x = 1
    print int (x)

CDW · Jan 2, 2015

schwedenmann hat gesagt.:

Code:

oberegrenze = int(raw_input("Geben Sie eine Obergrenze fuer die Zufallszahlen ein: "))
 
for i in range (10):
    x = random.random ()
    x = x * oberegrenze
    if  int (x) == 0:
        x = 1
    print int (x)

Es ging um alle Zahlen von 0000 bis 9999 in zufälliger Reihenfolge, nicht 10 Zahlen

----------------------
Btw:
Mal eine Lösung ganz ohne Shell-Erweiterungen (d.h, es sollte auch mit sh/(t)csh &Co funktionieren

),

Code:

seq -w 0 9999|sort -R > output

man sort hat gesagt.:
-R, --random-sort, --sort=random
Sort by a random order. This is a random permutation of the
inputs except that the equal keys sort together. It is imple‐
mented by hashing the input keys and sorting the hash values.
The hash function is chosen randomly. The hash function is ran‐
domized by /dev/random content

alternativ kann natürlich statt sort -R auch shuff verwendet werden.