Compilare: user.cpp: In function ‘int main()’: user.cpp:10:15: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(v[i]<v[i+1]){ ^ user.cpp:12:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] while(v[j]>v[j-1]){ ^ user.cpp:28:15: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(v[i]!=-1) ^ user.cpp:29:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] fout<<v[i]; ^