Compilare: user.cpp: In function ‘void make_links(int, char, int)’: user.cpp:41:36: warning: array subscript has type ‘char’ [-Wchar-subscripts] while(bad && !T[bad].leg[pc]) ^ user.cpp:44:44: warning: array subscript has type ‘char’ [-Wchar-subscripts] T[node].bad = (bad) ? T[bad].leg[pc] : root; ^ user.cpp:49:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(T[node].leg[c]) ^ user.cpp:50:37: warning: array subscript has type ‘char’ [-Wchar-subscripts] make_links(T[node].leg[c], c, node); ^ user.cpp: In function ‘void dump(int)’: user.cpp:77:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] str[se++] = c; ^ user.cpp:79:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] str[--se] = 0; ^