Anagrams: Difference between revisions
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{{task|Text processing}}
Two or more words can be composed of the same characters, but in a different order. Using the word list at http://www.puzzlers.org/pub/wordlists/unixdict.txt, find the sets of words that share the same characters that contain the most words in them.
== {{header|Haskell}} ==▼
<pre>▼
import Data.List▼
groupon f x y = (f x) == (f y)▼
main = do▼
f <- readFile "./../Puzzels/Rosetta/unixdict.txt"▼
let words = lines f▼
wix = groupBy (groupon fst) . sort $ zipWith ((,).sort) words words▼
mxl = foldl' ((.length).max) 0 wix▼
print . map (map snd) . filter ((==mxl).length) $ wix▼
</pre>▼
== {{header|J}} ==▼
(#~a:~:{:"1)(]/.~/:~&>)<;.2]1!:1<'unixdict.txt'▼
+-----+-----+-----+-----+-----+▼
|abel |able |bale |bela |elba |▼
+-----+-----+-----+-----+-----+▼
|alger|glare|lager|large|regal|▼
+-----+-----+-----+-----+-----+▼
|angel|angle|galen|glean|lange|▼
+-----+-----+-----+-----+-----+▼
|caret|carte|cater|crate|trace|▼
+-----+-----+-----+-----+-----+▼
|elan |lane |lean |lena |neal |▼
+-----+-----+-----+-----+-----+▼
|evil |levi |live |veil |vile |▼
+-----+-----+-----+-----+-----+▼
=={{header|Java}}==
Line 39 ⟶ 72:
[abel, able, bale, bela, elba]
[evil, levi, live, veil, vile]
▲== {{header|Haskell}} ==
▲<pre>
▲import Data.List
▲groupon f x y = (f x) == (f y)
▲main = do
▲ f <- readFile "./../Puzzels/Rosetta/unixdict.txt"
▲ let words = lines f
▲ wix = groupBy (groupon fst) . sort $ zipWith ((,).sort) words words
▲ mxl = foldl' ((.length).max) 0 wix
▲ print . map (map snd) . filter ((==mxl).length) $ wix
▲</pre>
▲== {{header|J}} ==
▲ (#~a:~:{:"1)(]/.~/:~&>)<;.2]1!:1<'unixdict.txt'
▲ +-----+-----+-----+-----+-----+
▲ |abel |able |bale |bela |elba |
▲ +-----+-----+-----+-----+-----+
▲ |alger|glare|lager|large|regal|
▲ +-----+-----+-----+-----+-----+
▲ |angel|angle|galen|glean|lange|
▲ +-----+-----+-----+-----+-----+
▲ |caret|carte|cater|crate|trace|
▲ +-----+-----+-----+-----+-----+
▲ |elan |lane |lean |lena |neal |
▲ +-----+-----+-----+-----+-----+
▲ |evil |levi |live |veil |vile |
▲ +-----+-----+-----+-----+-----+
=={{header|Python}}==
|
Revision as of 22:42, 26 September 2008
![Task](http://static.miraheze.org/rosettacodewiki/thumb/b/ba/Rcode-button-task-crushed.png/64px-Rcode-button-task-crushed.png)
You are encouraged to solve this task according to the task description, using any language you may know.
Two or more words can be composed of the same characters, but in a different order. Using the word list at http://www.puzzlers.org/pub/wordlists/unixdict.txt, find the sets of words that share the same characters that contain the most words in them.
Haskell
import Data.List groupon f x y = (f x) == (f y) main = do f <- readFile "./../Puzzels/Rosetta/unixdict.txt" let words = lines f wix = groupBy (groupon fst) . sort $ zipWith ((,).sort) words words mxl = foldl' ((.length).max) 0 wix print . map (map snd) . filter ((==mxl).length) $ wix
J
(#~a:~:{:"1)(]/.~/:~&>)<;.2]1!:1<'unixdict.txt' +-----+-----+-----+-----+-----+ |abel |able |bale |bela |elba | +-----+-----+-----+-----+-----+ |alger|glare|lager|large|regal| +-----+-----+-----+-----+-----+ |angel|angle|galen|glean|lange| +-----+-----+-----+-----+-----+ |caret|carte|cater|crate|trace| +-----+-----+-----+-----+-----+ |elan |lane |lean |lena |neal | +-----+-----+-----+-----+-----+ |evil |levi |live |veil |vile | +-----+-----+-----+-----+-----+
Java
<java>import java.net.*; import java.io.*; import java.util.*;
public class WordsOfEqChars {
public static void main(String[] args) throws IOException { URL url = new URL("http://www.puzzlers.org/pub/wordlists/unixdict.txt"); InputStreamReader isr = new InputStreamReader(url.openStream()); BufferedReader reader = new BufferedReader(isr);
Map<String, Collection<String>> anagrams = new HashMap<String, Collection<String>>(); String word; int count = 0; while ((word = reader.readLine()) != null) { char[] chars = word.toCharArray(); Arrays.sort(chars); String key = new String(chars); if (!anagrams.containsKey(key)) anagrams.put(key, new ArrayList<String>()); anagrams.get(key).add(word); count = Math.max(count, anagrams.get(key).size()); }
reader.close();
for (Collection<String> ana : anagrams.values()) if (ana.size() >= count) System.out.println(ana); }
}</java> Output:
[angel, angle, galen, glean, lange] [elan, lane, lean, lena, neal] [alger, glare, lager, large, regal] [abel, able, bale, bela, elba] [evil, levi, live, veil, vile]
Python
Python 2.5 shell input (IDLE) <python>>>> import urllib >>> from collections import defaultdict >>> words = urllib.urlopen('http://www.puzzlers.org/pub/wordlists/unixdict.txt').read().split() >>> len(words) 25104 >>> anagram = defaultdict(list) # map sorted chars to anagrams >>> for word in words: anagram[str(sorted(word))].append( word )
>>> count, max_anagrams = max((len(ana), ana) for ana in anagram.itervalues())
>>> for ana in anagram.itervalues():
if len(ana) >= count:
print ana
['caret', 'carte', 'cater', 'crate', 'trace']
['alger', 'glare', 'lager', 'large', 'regal']
['evil', 'levi', 'live', 'veil', 'vile']
['angel', 'angle', 'galen', 'glean', 'lange']
['elan', 'lane', 'lean', 'lena', 'neal']
['abel', 'able', 'bale', 'bela', 'elba']
>>> count
5
>>></python>