Compilare: main.cpp: In function 'int main()': main.cpp:51:59: warning: 'poz2' may be used uninitialized in this function [-Wmaybe-uninitialized] int Gsize = G.size() - 1, Hsize = H.size() - 1, poz1, poz2; ^~~~ main.cpp:51:53: warning: 'poz1' may be used uninitialized in this function [-Wmaybe-uninitialized] int Gsize = G.size() - 1, Hsize = H.size() - 1, poz1, poz2; ^~~~