{
TH1 *h[3];
h[0] = new TH1F("h1", "h1", 10, 0, 10);
h[1] = new TH1F("h2", "h2", 6, 0, 6);
h[2] = new TH1F("h3", "h3", 10, 0, 10.001);

c = new TCanvas;
c->Divide(1,3);

for (Int_t i = 0; i < 3; ++i) {
  c->cd(i+1);
  h[i]->Draw();
}
}