In file included from /in/driver/main.cpp:1:0:
/in/shortestP2P.hpp: In member function 'void ShortestP2P::readGraph()':
/in/shortestP2P.hpp:67:26: error: conversion to 'int' from 'long unsigned int' may alter its value [-Werror=conversion]
               int oldj = j;
                          ^
cc1plus: all warnings being treated as errors