Compilare: user.cpp: In function ‘void eulerianCycle()’: user.cpp:56:19: warning: unused variable ‘edge’ [-Wunused-variable] int from,next,edge; ^ user.cpp: In function ‘int main()’: user.cpp:89:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<path.size()-1;i++) ^