Qt Code: 
  1. #include <QString>
  2. #include <QMap>
  3. #include <QRegExp>
  4. #include <QMapIterator>
  5.  
  6.  
  7. int main () {
  8.  
  9.     QFile file("../MOVE QWidget/gamefiles/hiScores.txt");
  10.     QMap<int,QString> fileMap;
  11.  
  12.    if (file.open(QIODevice::ReadOnly)) {
  13.  
  14.         QTextStream txt(&file);
  15.         QRegExp rx("(^[0-9]+)");
  16.  
  17.         while ( !txt.atEnd() ) {
  18.             QString line =txt.readLine();
  19.             rx.indexIn(line);
  20.             int number = rx.cap(1).toInt();
  21.             fileMap.insert(number,line);
  22.         }
  23.  
  24.         QMapIterator<int,QString> i(fileMap);
  25.         i.toBack();
  26.         while ( i.hasPrevious()) {
  27.         i.previous();
  28.         std::cout<<i.key()<<" ";
  29.     }
  30.  
  31.    }
  32.     file.close();
  33. }
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Ok, thanks a lot for your help!
As you see, i go through first advice of calhal.
code snippet of course in 'CODE' tags ;-)