#include <iostream>
#include <vector>
#include <boost/shared_ptr.hpp>
#include <boost/make_shared.hpp>
#include <boost/ref.hpp>
#include "TGraphErrors.h"
#include "TFile.h"

using namespace std;

int main(){
TFile f("graphs.root");
int exp_n = 10;
char Tfilename[50];
int n_min = 1;
int n_runs = 10;
vector< boost::shared_ptr < TGraphErrors > > gr_ptr(exp_n);

for(int i_runs=n_min; i_runs<n_runs; i_runs++){
  for(int exp_i=0;exp_i<exp_n;exp_i++){ 
	sprintf(Tfilename, "gr%d_%d", exp_i,i_runs);
	gr_ptr[exp_i] = boost::make_shared<TGraphErrors>(f.Get(Tfilename));
  }
}

f.Close();
return 0;
}