Compilare: user.cpp:57:2: warning: no newline at end of file user.cpp: In function 'void calculare()': user.cpp:14: warning: array subscript has type 'char' user.cpp:14: warning: array subscript has type 'char' user.cpp:15: warning: array subscript has type 'char' user.cpp:15: warning: array subscript has type 'char' user.cpp: In function 'int main()': user.cpp:41: warning: array subscript has type 'char' user.cpp:41: warning: array subscript has type 'char' /tmp/cc4r7B4b.o: In function `main': user.cpp:(.text+0x21b): warning: the `gets' function is dangerous and should not be used.