Compilare: user.cpp:37: warning: integer constant is too large for ‘long’ type user.cpp:45: warning: integer constant is too large for ‘long’ type user.cpp:64: warning: integer constant is too large for ‘long’ type user.cpp: In function ‘int main()’: user.cpp:41: warning: comparison between signed and unsigned integer expressions user.cpp:53: warning: comparison between signed and unsigned integer expressions user.cpp:51: warning: unused variable ‘di’