Compilare: main.cpp: In function 'void Trie::insert(char*, Trie::ts)': main.cpp:44:21: warning: array subscript has type 'char' [-Wchar-subscripts] 44 | if(node -> v[s[0]] == nil) | ~~~^ main.cpp:45:20: warning: array subscript has type 'char' [-Wchar-subscripts] 45 | node -> v[s[0]] = new Trie; | ~~~^ main.cpp:46:32: warning: array subscript has type 'char' [-Wchar-subscripts] 46 | insert(s + 1, node -> v[s[0]]); | ~~~^ main.cpp: In function 'void Trie::print(Trie::ts)': main.cpp:60:32: warning: array subscript has type 'char' [-Wchar-subscripts] 60 | cout << (char)decr[node -> print]; | ~~~~~~~~^~~~~ main.cpp:64:31: warning: array subscript has type 'char' [-Wchar-subscripts] 64 | print(node -> v[node -> print]); | ~~~~~~~~^~~~~ main.cpp: In function 'int main()': main.cpp:82:30: warning: array subscript has type 'char' [-Wchar-subscripts] 82 | cin >> ch, s[i] = encr[ch]; | ^~