Compilare: user.cpp:125:2: warning: no newline at end of file user.cpp: In function 'int main()': user.cpp:35: warning: array subscript has type 'char' user.cpp:35: warning: array subscript has type 'char' user.cpp:35: warning: array subscript has type 'char' user.cpp:36: warning: array subscript has type 'char' user.cpp:39: warning: array subscript has type 'char' user.cpp: In function 'char f(int, int)': user.cpp:82: warning: array subscript has type 'char' user.cpp:86: warning: array subscript has type 'char'