Properly using QTableWidget and QTableWidgetItem

[c0dehunter]

I am having a QMap through which I iterate. I would like to display the keys and values in my QTableWidget.

int counter=0;
        QMapIterator<QChar,int> iter(ArithmeticCoding::letters_freq);
        while(iter.hasNext()){
            iter.next();
            QTableWidgetItem *item0=new QTableWidgetItem(iter.key());
            ui->table->setItem(counter,0,item0);
 
            QTableWidgetItem *item1=new QTableWidgetItem(iter.value());
            ui->table->setItem(counter,1,item1);
            counter++;
        }

int counter=0;
        QMapIterator<QChar,int> iter(ArithmeticCoding::letters_freq);
        while(iter.hasNext()){
            iter.next();
            QTableWidgetItem *item0=new QTableWidgetItem(iter.key());
            ui->table->setItem(counter,0,item0);

            QTableWidgetItem *item1=new QTableWidgetItem(iter.value());
            ui->table->setItem(counter,1,item1);
            counter++;
        }

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Of course here my pointers to QTableWidgetItem get lost resulting in random garbage in my table. What would be the proper way of using them? Should I save them to an additional array? That seems like an overhead to me.