Compilare: user.cpp: In function ‘int main()’: user.cpp:18: warning: unused variable ‘n2’ user.cpp: In function ‘int afisare(int)’: user.cpp:150: warning: no return statement in function returning non-void user.cpp: In function ‘int main()’: user.cpp:18: warning: ‘v1’ may be used uninitialized in this function user.cpp:18: warning: ‘v2’ may be used uninitialized in this function