Compile Error
/in/shortestP2P.cc:15:1: error: redefinition of 'ShortestP2P::ShortestP2P()'
ShortestP2P::ShortestP2P() = default;
^~~~~~~~~~~
In file included from /in/shortestP2P.cc:1:0:
/in/shortestP2P.hpp:16:7: note: 'ShortestP2P::ShortestP2P()' previously defined here
ShortestP2P() {}
^~~~~~~~~~~
