In file included from /in/driver/main.cpp:1:0:
/in/shortestP2P.hpp: In member function 'void ShortestP2P::bellman_ford(size_t)':
/in/shortestP2P.hpp:91:14: error: 'queue' is not a member of 'std'
         std::queue<size_t> q;
              ^~~~~
/in/shortestP2P.hpp:91:26: error: expected primary-expression before '>' token
         std::queue<size_t> q;
                          ^
/in/shortestP2P.hpp:91:28: error: 'q' was not declared in this scope
         std::queue<size_t> q;
                            ^