Compilare: user.cpp: In function 'int main()': user.cpp:21: warning: format '%d' expects type 'int*', but argument 2 has type 'long int*' user.cpp:21: warning: format '%d' expects type 'int*', but argument 3 has type 'long int*' user.cpp:47: warning: format '%d' expects type 'int', but argument 2 has type 'long int' /tmp/ccsbBHyt.o: In function `main': user.cpp:(.text+0xa7): warning: the `gets' function is dangerous and should not be used.