Compilare: user.cpp:61:2: warning: no newline at end of file user.cpp:3: warning: ISO C++ forbids declaration of 'main' with no type user.cpp: In function 'int main()': user.cpp:9: warning: format '%ld' expects type 'long int*', but argument 3 has type 'unsigned int*' user.cpp:9: warning: format '%ld' expects type 'long int*', but argument 4 has type 'unsigned int*'