private void BtnCrossOver_Click(object sender, EventArgs e)
        {
            Individual ind1 = new Individual();
            Individual ind2 = new Individual();

            txtInd1.Text = ind1.PrintIndividual();
            txtInd2.Text = ind2.PrintIndividual();

            Individual[] children = ag.CrossOverIndividual(
                ind1,
                ind2
                );

            txtIndCross1.Text = children[0].PrintIndividual();
            txtIndCross2.Text = children[1].PrintIndividual();

            //evolui a população
            pop = ag.Execute(pop);
            txtPopulation.Text = pop.PrintPopulation();
            lbMedia.Text       = pop.GetPopulationAverage().ToString();
        }