// test.cpp : Defines the entry point for the console application.
//

#include <iostream>
#include <Riostream.h>
#include <TROOT.h>
#include <TRandom.h>
#include <TFile.h>
#include <TTree.h>
#include <TCanvas.h>
#include <TApplication.h>

using namespace std;

typedef Int_t* IntPtr_t;

int main()
{

  Int_t num=20;
  struct exam_t
  {
    Int_t *ip;
    Int_t *op;
  };
  
  exam_t var; 
  var.ip=new Int_t[num];
  var.op=new Int_t[num];
  
  for(int i=0;i<num;i++)
    {
      if(i<10)
	{
	  var.op[i]=gRandom->Rndm(1)*10;
	  var.ip[i]=gRandom->Rndm(1)*100;
	}
      else
	{
	  var.op[i]=0;
	  var.ip[i]=0;
	}
      cout << var.ip[i] << ","<<var.op[i]<<"  ";
    }
  cout << endl;

  TFile outfile("out.root","RECREATE");
  TTree *tree = new TTree("tree","Tree");
  tree->Branch("b0",&num,"num/I");
  tree->Branch("b1",var.ip,"var.ip[num]/I:var.op[num]");
  tree->Fill();

  tree->Print();
  tree->Scan("*");

  outfile.Close();

  delete [] var.ip;
  delete [] var.op;
  
  return 0;
}