#ifndef HASH_INCLUDED
#define HASH_INCLUDED
#ifdef WIN32
#include <hash_map>
using stdext::hash_map;
#else // !WIN32
#include <ext/hash_map>
using namespace __gnu_cxx;

namespace __gnu_cxx
{
  template<> struct hash<long long> {
    size_t operator()(long long __x) const { return __x; }
  };
  template<> struct hash<const long long> {
    size_t operator()(const long long __x) const { return __x; }
  };
  
  
  template<> struct hash<unsigned long long> {
    size_t operator()(unsigned long long __x) const { return __x; }
  };
  template<> struct hash<const unsigned long long> {
    size_t operator()(const unsigned long long __x) const { return __x; }
  };
}
#endif // WIN32
#endif // HASH_INCLUDED