Compilare: user.cpp:57:2: warning: no newline at end of file user.cpp: In function 'int main()': user.cpp:10: warning: unused variable 'j' user.cpp:10: warning: 'bf' may be used uninitialized in this function user.cpp:10: warning: 'af' may be used uninitialized in this function user.cpp:10: warning: 'bf2' may be used uninitialized in this function user.cpp:10: warning: 'af2' may be used uninitialized in this function