#include <iostream>
#include <fstream>
#include <cstdlib>
#include "TTree.h"
#include "TApplication.h"
#include "TFile.h"

using namespace std;

int main(int argc, char **argv) {

  // TApplication* theApp = new TApplication("App", &argc, argv);

  TFile* outfile = new TFile("markOutput.root", "RECREATE");

  TTree* tree = new TTree("mark","mark");

  TTree* tree2 = new TTree("mark2","mark2");

  int number;

  int another;

  //int number2;

  //int another2;

  tree->Branch("number", &number, "number/I", 32000);

  tree->Branch("another", &another, "another/I", 32000);

  tree2->Branch("number", &number, "number/I", 32000);

  tree2->Branch("another", &another, "another/I", 32000);

  for (int i=0;i<10;i++) {

    number = i;

    another = 2*i;

    tree->Fill();

    tree2->Fill();

  }

  // tree->BuildIndex("number","another");

  // tree2->BuildIndex("number","another");

  tree->Write();

  tree2->Write();

  // theApp->Run();

  return 0;

}