for i=1:nosobnikow
        if (rand() < pMut)
            x = floor(rand()*nmiast+1);
            y = floor(rand()*nmiast+1);
            tmp = newpop(i , x );
            newpop(i , x) = newpop(i, y);
            newpop(i , y) = tmp;
        end
    end