Help to set up sorting algorithm

[Quasar]

Solved Creating a custom Class based upon QList.
It works very well, it use a QList<QPair<QString, QTime>> as member and like a QMap have unique keys as QStrings.
I'm posting the header of that class, so if anyone has troubles like mine, can implement a custom class like this, for exemple based on different QPair.

PairTimeList.h

#ifndef PAIRTIMELIST_H
#define PAIRTIMELIST_H
#include <QList>
#include <QString>
#include <QStringList>
#include <QTime>
#include <QPair>
 
class PairTimeList
{
public:
    PairTimeList();
    PairTimeList( QList< QPair<QString, QTime> > list);
 
    bool contains(const QString key) const;
    bool contains(const QPair<QString, QTime> pair) const;
    bool insert(const QString str, const QTime t);
    bool insert(const QPair<QString, QTime> pair);
    bool erase(const QString key);
    bool erase(const QPair<QString, QTime> pair);
    bool erase(int position);
    void clear();
    void removeFirst();
    void removeLast();
    bool replace(int position, const QPair<QString, QTime> newpair);
    bool replace(const QString key, const QTime newTime);
    int position(const QString key) const;                          //return -1 if key doesn't exists
    QPair<QString, QTime> data(int position) const;
    const QPair<QString, QTime> at(int position) const;
    QTime time(const QString key) const;
    QList<QTime> times() const;
    QStringList keys();
    QStringList keys(const QTime value);                       //return all keys(QString) with QTime=value
    QStringList keysBetween(const QTime fromTime, const QTime toTime);
    const QList< QPair<QString, QTime> > sort_byTime() ;        //BubbleSort
    const QList< QPair<QString, QTime> > sort_byStrings();      //BubbleSort
    const QList< QPair<QString, QTime> > getList() const ;
    QString print();
    int size() const;
    void setTime(int position, QTime t);
    void setTime(int position, int h, int min, int sec=0, int msec=0);
    void setTime(const QString key, QTime t);
    void setTime(const QString key, int h, int min, int sec=0, int msec=0);
    void addSec(int position, int sectoAdd);
    void addSec(const QString key, int sectoAdd);
    void addMsec(int position, int msecToAdd);
    void addMsec(const QString key, int msecToAdd);
    QTime deltaTime(int from1, int to2);
    int msecBetween(int position1, int position2);
    int msecBetween(const QString key1, QString key2);
    int secBetween(int position1, int position2);
    int secBetween(const QString key1, QString key2);
private:
   QList< QPair<QString, QTime> > mylist;
};
 
#endif // PAIRTIMELIST_H

#ifndef PAIRTIMELIST_H
#define PAIRTIMELIST_H
#include <QList>
#include <QString>
#include <QStringList>
#include <QTime>
#include <QPair>

class PairTimeList
{
public:
    PairTimeList();
    PairTimeList( QList< QPair<QString, QTime> > list);

    bool contains(const QString key) const;
    bool contains(const QPair<QString, QTime> pair) const;
    bool insert(const QString str, const QTime t);
    bool insert(const QPair<QString, QTime> pair);
    bool erase(const QString key);
    bool erase(const QPair<QString, QTime> pair);
    bool erase(int position);
    void clear();
    void removeFirst();
    void removeLast();
    bool replace(int position, const QPair<QString, QTime> newpair);
    bool replace(const QString key, const QTime newTime);
    int position(const QString key) const;                          //return -1 if key doesn't exists
    QPair<QString, QTime> data(int position) const;
    const QPair<QString, QTime> at(int position) const;
    QTime time(const QString key) const;
    QList<QTime> times() const;
    QStringList keys();
    QStringList keys(const QTime value);                       //return all keys(QString) with QTime=value
    QStringList keysBetween(const QTime fromTime, const QTime toTime);
    const QList< QPair<QString, QTime> > sort_byTime() ;        //BubbleSort
    const QList< QPair<QString, QTime> > sort_byStrings();      //BubbleSort
    const QList< QPair<QString, QTime> > getList() const ;
    QString print();
    int size() const;
    void setTime(int position, QTime t);
    void setTime(int position, int h, int min, int sec=0, int msec=0);
    void setTime(const QString key, QTime t);
    void setTime(const QString key, int h, int min, int sec=0, int msec=0);
    void addSec(int position, int sectoAdd);
    void addSec(const QString key, int sectoAdd);
    void addMsec(int position, int msecToAdd);
    void addMsec(const QString key, int msecToAdd);
    QTime deltaTime(int from1, int to2);
    int msecBetween(int position1, int position2);
    int msecBetween(const QString key1, QString key2);
    int secBetween(int position1, int position2);
    int secBetween(const QString key1, QString key2);
private:
   QList< QPair<QString, QTime> > mylist;
};

#endif // PAIRTIMELIST_H

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