Compilare: user.cpp: In function ‘std::ostream& operator<<(std::ostream&, nrmare)’: user.cpp:60:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:67:13: warning: unused variable ‘tot’ [-Wunused-variable] int x,y,tot; ^