Compilare: user.cpp: In function 'long int impartire()': user.cpp:9: warning: unused variable 'ipr' user.cpp: In function 'int main()': user.cpp:60: warning: format '%ld' expects type 'long int', but argument 2 has type 'int' user.cpp:64: warning: format '%ld' expects type 'long int', but argument 2 has type 'int' user.cpp:72: warning: format '%ld' expects type 'long int', but argument 2 has type 'int'