Complicated demo of C++ unordered_map

unordered_map.cc

#include <iostream>
#include <unordered_map>
#include <string>

int main()
{
  std::basic_string<char, std::char_traits<char>, std::allocator<char> > name = std::basic_string<char, std::char_traits<char>, std::allocator<char> >();
  std::unordered_map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, int, std::hash<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::equal_to<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, int> > > score_card = std::unordered_map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, int, std::hash<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::equal_to<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, int> > >{std::initializer_list<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, int> >{std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, int>{"irfan", 89}, std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, int>{"nida", 90}, std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, int>{"maddy", 91}, std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, int>{"urfi", 93}}, 0, std::hash<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >(), std::equal_to<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >(), std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, int> >()};
  std::__detail::_Node_iterator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, int>, false, true> search = score_card.find(std::basic_string<char, std::char_traits<char>, std::allocator<char> >("irfan", std::allocator<char>()));
  if(!operator==(static_cast<const std::__detail::_Node_iterator_base<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, int>, true>&>(search), static_cast<const std::__detail::_Node_iterator_base<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, int>, true>&>(score_card.end()))) {
    std::operator<<(std::operator<<(std::cout, search.operator->()->first), " : ").operator<<(search.operator->()->second).operator<<(std::endl);
  } else {
    std::operator<<(std::cout, "Record not found.").operator<<(std::endl);
  } 
  
  return 0;
}