Compilare: user.cpp: In function 'void naturalizeaza()': user.cpp:12: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'int fact()': user.cpp:57: warning: array subscript has type 'char' user.cpp: In function 'int main()': user.cpp:74: warning: array subscript has type 'char' user.cpp:74: warning: array subscript has type 'char' user.cpp: In function 'int fact()': user.cpp:47: warning: 'aux' may be used uninitialized in this function /tmp/ccQH0D0j.o: In function `main': user.cpp:(.text+0x334): warning: the `gets' function is dangerous and should not be used.