SetRangeUser and SetTitle working with THStacks and TH1F obj

ROOT
4 
void stacktest()
{
  gStyle->SetHistTopMargin(0);
  TCanvas c("c","c");
  gPad->SetLeftMargin(0.35);
  
  TH1F* h1 = new TH1F("h1","h1",50,-5,5);
  TH1F* h2 = new TH1F("h2","h2",50,-5,5);
  TH1F* h3 = new TH1F("h3","h3",50,-5,5);
  
  h1->FillRandom("gaus",13000);
  h2->FillRandom("gaus",20000);
  h3->FillRandom("gaus",35000);
  
  h1->SetFillColor(kRed);
  h2->SetFillColor(kAzure);
  h3->SetFillColor(kYellow);
  
  THStack* hs = new THStack("hs","hs");
  
#if 1 /* 0 or 1 */
  hs->Add(h1);
  hs->Add(h2);
  hs->Add(h3);
  hs->Draw("");
#else /* 0 or 1 */
  hs->Add(h3);
  hs->Add(h2);
  hs->Add(h1);
  hs->Draw("NOSTACK");
#endif /* 0 or 1 */
  
  hs->GetYaxis()->SetTitleSize(0.05);
  hs->GetYaxis()->SetTitleOffset(1.85);
  hs->GetYaxis()->SetLabelSize(0.045);
  hs->GetYaxis()->SetTitle("Colombia");
  
  hs->SetMinimum(1.e-2);
  hs->SetMaximum(1.e4);
  
#if 1 /* 0 or 1 */
  TH1 *h = (TH1 *)(hs->GetStack()->Last()); // the "sum" of all histograms
#else /* 0 or 1 */
  TH1 *h = ((TH1 *)(hs->GetStack()->Last()))->DrawCopy("E P SAMES"); // copy of "sum"
  h->SetFillColor(0);
#endif /* 0 or 1 */
  
  h->SetMarkerColor(kOrange);
  h->SetMarkerSize(1.5);
  h->SetMarkerStyle(20);
  h->Draw("E P SAMES");
  
  c.Draw();
  c.SaveAs("image.gif");
}