foo.cc: In function 'int main()':
foo.cc:15:37: error: 'setprecision' is not a member of 'std'
   15 |     std::cout << std::fixed << std::setprecision(2) << total_price << std::endl;
      |                                     ^~~~~~~~~~~~

[Hydro](https://hydro.ac)提供评测服务