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Mysaa 2021-05-24 18:53:41 +02:00
commit 81e57251aa
3 changed files with 113 additions and 0 deletions

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.gitignore vendored Normal file
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.classpath
.project
.settings
bin/

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package com.bernard.condorcet;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.IntStream;
public class ScrutinConDOrcet {
public static void main(String[] args) throws IOException {
Election e = voteReader(new File("/home/mysaa/Desktop/votes"));
List<String> results = condorc(e);
System.out.println(results);
}
public static final Election voteReader(File f) throws IOException{
BufferedReader bis = new BufferedReader(new FileReader(f));
List<Integer[]> votes = new ArrayList<Integer[]>();
List<String> candidats = new ArrayList<String>();
String line;
while((line = bis.readLine()) != null) {
int li = line.indexOf("#");
if(li!=-1)
line = line.substring(0, li);
String[] bulletin = line.split(",");
Integer[] bultindex = new Integer[bulletin.length];
for(int i = 0;i<bulletin.length;i++) {
if(!candidats.contains(bulletin[i]))
candidats.add(bulletin[i]);
bultindex[i] = candidats.indexOf(bulletin[i]);
}
votes.add(bultindex);
}
bis.close();
Integer[][] out = new Integer[votes.size()][];
votes.toArray(out);
String[] kdidats = new String[candidats.size()];
candidats.toArray(kdidats);
return new Election(out,kdidats);
}
public static final Election jsonVoteReader(File f) throws IOException{
List<Integer[]> votes = new ArrayList<Integer[]>();
List<String> candidats = new ArrayList<String>();
Integer[][] out = new Integer[votes.size()][];
votes.toArray(out);
String[] kdidats = new String[candidats.size()];
candidats.toArray(kdidats);
return new Election(out,kdidats);
}
public static List<String> condorc(Election e) {
return condorc(e.candidats,e.votes);
}
public static List<String> condorc(String[] candidats,Integer[][] votes) {
final int n = candidats.length;
int[] duels = new int[n];
Arrays.fill(duels, 0);
for(int i = 0;i<n;i++) {
for(int j = i+1;j<n;j++) {
// Duel entre candidat i et candidat j
final int i2 = i,j2 = j;
//Compte le nombre de votes pour (i plutot que j) puis (j plutot que i)
long votesi = Arrays.stream(votes).filter(a -> indexof(a, i2,n) < indexof(a, j2,n)).count();
long votesj = Arrays.stream(votes).filter(a -> indexof(a, j2,n) < indexof(a, i2,n)).count();
System.out.println(candidats[i]+">"+candidats[j]+"- "+votesi+" sont pour et "+votesj+" sont contre");
if(votesi>votesj)
duels[i]++;
else if(votesj>votesi)
duels[j]++;
}
}
return IntStream.range(0, candidats.length).boxed().sorted((i,j) -> Integer.compare(duels[i],duels[j])).map(i->Integer.toString(duels[i])+":"+candidats[i]).collect(Collectors.toList());
}
public static final int indexof(Integer[] a, int i,int defaultValue) {
return IntStream.range(0, a.length).filter(j->a[j]==i).findAny().orElse(defaultValue);
}
static class Election{
Integer[][] votes;
String[] candidats;
public Election(Integer[][] out, String[] candidats) {
this.votes = out;
this.candidats = candidats;
}
}
}

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src/module-info.java Normal file
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module scrutinPeyrel {
requires java.xml;
}