Compilare: user.cpp: In function 'int main()': user.cpp:66: warning: format '%ld' expects type 'long int', but argument 2 has type 'int' user.cpp:68: warning: format '%03ld' expects type 'long int', but argument 2 has type 'int' user.cpp:80: warning: format '%ld' expects type 'long int', but argument 2 has type 'int' user.cpp:82: warning: format '%03ld' expects type 'long int', but argument 2 has type 'int' /tmp/ccIxFOLG.o: In function `main': user.cpp:(.text+0x169): warning: the `gets' function is dangerous and should not be used.