Compilare: user.cpp: In function ‘int main()’: user.cpp:8:13: warning: array subscript has type ‘char’ [-Wchar-subscripts] f>>c;v[c]=0; ^ user.cpp:9:13: warning: array subscript has type ‘char’ [-Wchar-subscripts] f>>c;v[c]=1; ^ user.cpp:10:13: warning: array subscript has type ‘char’ [-Wchar-subscripts] f>>c;v[c]=2; ^ user.cpp:20:20: warning: array subscript has type ‘char’ [-Wchar-subscripts] ++d[v[c]]; ^ user.cpp:21:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(d[v[c]]==n)ok=1; ^