#include <cstdlib>
#include <vector>
#include <iostream>
#include <map>
#include <string>
#include "TFile.h"
#include "TTree.h"
#include "TString.h"
#include "TSystem.h"
#include "TROOT.h"
#include "TStopwatch.h"
//#include "TMVA/Tools.h"
//#include "TMVA/Reader.h"
//#include "TMVA/MethodCuts.h"
#include <cstring>
#include <sstream>
#include <stdlib.h>


using namespace TMVA;

void code()
{
    TFile* data = new TFile("nfile_81.root");
    TTree* datatree = (TTree*)(data->Get("tree"));


   vector<double>* nm_nl_j;
   double nnjet;

   datatree->SetBranchAddress("m_nl_j",&nm_nl_j);
   datatree->SetBranchAddress("njet",&nnjet);
   
    Long64_t ientry=0;

    for (ientry=0; ientry < 100; ientry++)
    {
         datatree->GetEntry(ientry);

         cout<<nnjet<<endl;

         for (Int_t i=0; i<nnjet;i++)
         {
              cout<<(*nm_nl_j)[i]<<endl;        
         }
     }
}