Compilare: user.cpp: In function ‘int main()’: user.cpp:64:30: warning: array subscript has type ‘char’ [-Wchar-subscripts] iv=i+di[d]; ^ user.cpp:65:30: warning: array subscript has type ‘char’ [-Wchar-subscripts] jv=j+dj[d]; ^ user.cpp:90:23: warning: array subscript has type ‘char’ [-Wchar-subscripts] iv=ic+di[d]; ^ user.cpp:91:23: warning: array subscript has type ‘char’ [-Wchar-subscripts] jv=jc+dj[d]; ^