Compile Error
In file included from /in/driver/main.cpp:1:0:
/in/shortestP2P.hpp:123:6: error: prototype for 'bool ShortestP2P::is_valid_graph() const' does not match any in class 'ShortestP2P'
bool ShortestP2P::is_valid_graph() const {
^~~~~~~~~~~
/in/shortestP2P.hpp:69:10: error: candidate is: bool ShortestP2P::is_valid_graph()
bool is_valid_graph();
^~~~~~~~~~~~~~
