Compilare: user.cpp:126:2: warning: no newline at end of file user.cpp: In function 'void back(short int, short int, short int)': user.cpp:36: warning: array subscript has type 'char' user.cpp:36: warning: array subscript has type 'char' user.cpp:36: warning: array subscript has type 'char' user.cpp:46: warning: array subscript has type 'char' user.cpp:46: warning: array subscript has type 'char' user.cpp:46: warning: array subscript has type 'char' user.cpp: In function 'int main()': user.cpp:114: warning: format '%ld' expects type 'long int', but argument 2 has type 'int' /tmp/ccBUoSOx.o: In function `main': user.cpp:(.text+0x56f): warning: the `gets' function is dangerous and should not be used.