Compilare: main.cpp: In function 'void elim_front()': main.cpp:15:9: warning: unused variable 'x' [-Wunused-variable] int x = maxQ.front(), y=minQ.front(); ^ main.cpp:15:27: warning: unused variable 'y' [-Wunused-variable] int x = maxQ.front(), y=minQ.front(); ^ main.cpp: In function 'int main()': main.cpp:48:37: warning: 'dr' may be used uninitialized in this function [-Wmaybe-uninitialized] g<<lmax<<" "<<st+1<<" "<<dr+1; ^ main.cpp:48:29: warning: 'st' may be used uninitialized in this function [-Wmaybe-uninitialized] g<<lmax<<" "<<st+1<<" "<<dr+1; ^~~