Compilare: user.cpp: In function 'int main()': user.cpp:32: warning: name lookup of 'i' changed user.cpp:16: warning: matches this 'i' under ISO standard rules user.cpp:27: warning: matches this 'i' under old rules user.cpp:82: warning: format '%d' expects type 'int', but argument 2 has type 'long unsigned int' /tmp/ccCHemiN.o: In function `main': user.cpp:(.text+0xc6): warning: the `gets' function is dangerous and should not be used.