In file included from /in/driver/main.cpp:1:0:
/in/shortestP2P.hpp: In member function 'void ShortestP2P::find(std::vector<std::vector<int> >&, int, int)':
/in/shortestP2P.hpp:108:17: error: comparison between signed and unsigned integer expressions [-Werror=sign-compare]
           if (i != node && i!=start){
               ~~^~~~~~~
/in/shortestP2P.hpp:108:29: error: comparison between signed and unsigned integer expressions [-Werror=sign-compare]
           if (i != node && i!=start){
                            ~^~~~~~~
cc1plus: all warnings being treated as errors