// =====================================================================================
//
//       Filename:  filter.cpp
//
//    Description:
//
//        Version:  1.0
//        Created:  Fri Apr 26 12:48:03 CST 2019
//       Revision:  none
//       Compiler:  g++
//
//         Author:  Jinkun Lin, jkunlin@gmail.com
//   Organization:  School of EECS, Peking University
//
// =====================================================================================
#include <fstream>
#include <iostream>
#include <string>
#include <vector>
using namespace std;

int main(int argc, const char *argv[]) {
  ifstream instance_name_file(argv[1]);
  if (!instance_name_file) {
    std::cout << "instance_name_file open error" << std::endl;
    return 1;
  }

  return 0;
}