Compilare: user.cpp: In function 'void read()': user.cpp:17: warning: format '%ld' expects type 'long int*', but argument 2 has type 'int*' user.cpp:17: warning: format '%ld' expects type 'long int*', but argument 3 has type 'int*' user.cpp: In function 'int main()': user.cpp:59: warning: format '%ld' expects type 'long int', but argument 2 has type 'int'