Compilare: main.cpp: In function 'void insertTrie(Trie*, std::string, int)': main.cpp:34:16: warning: array subscript has type 'char' [-Wchar-subscripts] 34 | if(nod -> nxt[lett] == 0) | ^~~~ main.cpp:35:14: warning: array subscript has type 'char' [-Wchar-subscripts] 35 | nod -> nxt[lett] = new Trie; | ^~~~ main.cpp:37:24: warning: array subscript has type 'char' [-Wchar-subscripts] 37 | insertTrie(nod -> nxt[lett], s, ind + 1); | ^~~~