Compilare: user.cpp: In function 'void read()': user.cpp:18: warning: format '%ld' expects type 'long int*', but argument 2 has type 'int*' user.cpp:18: warning: format '%ld' expects type 'long int*', but argument 3 has type 'int*' user.cpp: In function 'int main()': user.cpp:59: warning: format '%ld' expects type 'long int', but argument 2 has type 'int' /tmp/ccykle6v.o: In function `read()': user.cpp:(.text+0x4f): warning: the `gets' function is dangerous and should not be used.