Compilare: user.cpp:67:2: warning: no newline at end of file user.cpp: In function 'int cmp(char*, char*)': user.cpp:33: warning: comparison between signed and unsigned integer expressions user.cpp:33: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'int main()': user.cpp:42: warning: unused variable 'j' user.cpp: In function 'int cmp(char*, char*)': user.cpp:38: warning: control reaches end of non-void function /tmp/cc8Xfivq.o: In function `main': user.cpp:(.text+0xee): warning: the `gets' function is dangerous and should not be used.