Compilare: user.cpp: In function ‘void fill(int, int)’: user.cpp:22:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] int ic = i+di[d]; ^ user.cpp:23:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] int jc = j+dj[d]; ^ user.cpp: In function ‘int main()’: user.cpp:70:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] int iv = ic+di[d]; ^ user.cpp:71:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] int jv = jc+dj[d]; ^