Eroare de compilare: user.cpp:22: error: integer constant is too large for 'long' type user.cpp: In function 'int main()': user.cpp:29: error: call of overloaded 'abs(long long int)' is ambiguous /usr/include/stdlib.h:691: note: candidates are: int abs(int) user.cpp:5: note: long long int abs(long long int) /usr/include/c++/4.2/cstdlib:174: note: long long int __gnu_cxx::abs(long long int) /usr/include/c++/4.2/cstdlib:143: note: long int std::abs(long int)