Compilare: user.cpp: In function ‘void lee()’: user.cpp:30:35: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[x][y][z]=a[cx[p]][cy[p]][cz[p]]+1; ^ user.cpp:30:42: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[x][y][z]=a[cx[p]][cy[p]][cz[p]]+1; ^ user.cpp:30:49: warning: array subscript has type ‘char’ [-Wchar-subscripts] a[x][y][z]=a[cx[p]][cy[p]][cz[p]]+1; ^