Compilare: user.cpp:38:2: warning: no newline at end of file user.cpp: In function 'int main()': user.cpp:31: warning: format '%d' expects type 'int*', but argument 3 has type 'long int*' user.cpp:32: warning: format '%d' expects type 'int*', but argument 3 has type 'long int*' user.cpp: In function 'int rec(int, int, int)': user.cpp:23: warning: control reaches end of non-void function