Compilare: user.cpp: In function ‘int main()’: user.cpp:30:28: warning: variable ‘fmm’ set but not used [-Wunused-but-set-variable] pair < int , int > fmm=q.front(); ^ user.cpp:42:28: warning: ‘l’ may be used uninitialized in this function [-Wmaybe-uninitialized] g<<vmax<<" "<<st<<" "<<l<<'\n'; ^ user.cpp:42:19: warning: ‘st’ may be used uninitialized in this function [-Wmaybe-uninitialized] g<<vmax<<" "<<st<<" "<<l<<'\n'; ^