int main(){
long n, k;
long n; scanf("%ld", &n);
long total(0);
while(n--){
long rd; scanf("%ld", &rd);
std::vector<std::vector<long> > g(rd);
for(long r = 1; r < rd; r++){
long x, y; scanf("%ld %ld", &x, &y);
--x; --y;
g[y].push_back(x);
g[x].push_back(y);
}
total += getDiameter(g);
}
printf("%ld\n", total);
return 0;
}
TPZNetworkSquareMidimew :: TPZNetworkSquareMidimew( const TPZComponentId& id,
const TPZString& routerId,
unsigned x,
unsigned y,
unsigned z )
: TPZNetwork(id,routerId,x,y,z)
{
unsigned diametro=getDiameter();
initializeHistogram(diametro);
}
void Badge::paintEvent(QPaintEvent *event)
{
Q_UNUSED(event)
Q_D(Badge);
QPainter painter(this);
painter.setRenderHint(QPainter::Antialiasing);
painter.translate(d->x, d->y);
QBrush brush;
brush.setStyle(Qt::SolidPattern);
brush.setColor(backgroundColor());
painter.setBrush(brush);
painter.setPen(Qt::NoPen);
const int s = getDiameter();
QRectF r(0, 0, s, s);
r.translate(QPointF((width()-s), (height()-s))/2);
if (d->icon.isNull())
{
painter.drawEllipse(r.translated(0, 0.5));
painter.setPen(textColor());
painter.setBrush(Qt::NoBrush);
painter.drawText(r, Qt::AlignCenter, d->text);
}
else
{
painter.drawEllipse(r);
QRectF q(0, 0, 16, 16);
q.moveCenter(r.center());
d->icon.paint(&painter, q.toRect(), Qt::AlignCenter);
}
}
QSize Badge::sizeHint() const
{
const int s = getDiameter();
return QSize(s+4, s+4);
}
