Compilare: user.cpp: In function ‘int main()’: user.cpp:48:24: warning: ‘bn2’ may be used uninitialized in this function [-Wmaybe-uninitialized] g<<bn1<<'\n'<<bn2<<'\n'<<best; ^~~~ user.cpp:48:13: warning: ‘bn1’ may be used uninitialized in this function [-Wmaybe-uninitialized] g<<bn1<<'\n'<<bn2<<'\n'<<best; ^~~~