In file included from /in/driver/main.cpp:1:0:
/in/shortestP2P.hpp: In member function 'void ShortestP2P::readGraph()':
/in/shortestP2P.hpp:49:29: error: comparison between signed and unsigned integer expressions [-Werror=sign-compare]
           for (int i = 0; i < n; i++)
                           ~~^~~
/in/shortestP2P.hpp:68:29: error: comparison between signed and unsigned integer expressions [-Werror=sign-compare]
           for (int i = 0; i < n; i++)
                           ~~^~~
/in/shortestP2P.hpp:70:33: error: comparison between signed and unsigned integer expressions [-Werror=sign-compare]
               for (int j = 0; j < n; j++)
                               ~~^~~
/in/shortestP2P.hpp:72:37: error: comparison between signed and unsigned integer expressions [-Werror=sign-compare]
                   for (int k = 0; k < n; k++)
                                   ~~^~~
/in/shortestP2P.hpp: In member function 'void ShortestP2P::distance(unsigned int, unsigned int)':
/in/shortestP2P.hpp:110:15: error: comparison between signed and unsigned integer expressions [-Werror=sign-compare]
         if (A == -1)
             ~~^~~~~
cc1plus: all warnings being treated as errors