Compilare: user.cpp: In function 'int main()': user.cpp:33: warning: comparison between signed and unsigned integer expressions user.cpp:50: warning: comparison between signed and unsigned integer expressions user.cpp:69: warning: comparison between signed and unsigned integer expressions user.cpp:23: warning: 'j' may be used uninitialized in this function /tmp/cc0QGClA.o: In function `main': user.cpp:(.text+0x25e): warning: the `gets' function is dangerous and should not be used.