Compilare: user.cpp: In function ‘void ins(Tr*, char*, int)’: user.cpp:32:15: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(!t->fiu[*p]) ^ user.cpp:33:12: warning: array subscript has type ‘char’ [-Wchar-subscripts] t->fiu[*p]=new Tr; ^ user.cpp:34:15: warning: array subscript has type ‘char’ [-Wchar-subscripts] ins(t->fiu[*p],p+1,las); ^ user.cpp: In function ‘void upd(Tr*, char*, int)’: user.cpp:45:14: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(t->fiu[*p]) ^ user.cpp:46:16: warning: array subscript has type ‘char’ [-Wchar-subscripts] upd(t->fiu[*p],p+1,las); ^ user.cpp: In function ‘void del(Tr*, char*)’: user.cpp:53:14: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(t->fiu[*p]) ^ user.cpp:54:16: warning: array subscript has type ‘char’ [-Wchar-subscripts] del(t->fiu[*p],p+1); ^