Compilare: main.cpp: In function 'void add_relevance(const char*, int)': main.cpp:49:43: warning: array subscript has type 'char' [-Wchar-subscripts] 49 | if (!ptr->next[map_r[str[i]]]) { | ~~~~~^ main.cpp:50:46: warning: array subscript has type 'char' [-Wchar-subscripts] 50 | ptr->next[map_r[str[i]]] = new TrieNode; | ~~~~~^ main.cpp:52:44: warning: array subscript has type 'char' [-Wchar-subscripts] 52 | ptr = ptr->next[map_r[str[i]]]; | ~~~~~^ main.cpp: In function 'void best_str(const char*)': main.cpp:109:39: warning: array subscript has type 'char' [-Wchar-subscripts] 109 | ptr = ptr->next[map_r[next]]; | ^~~~ main.cpp:114:44: warning: array subscript has type 'char' [-Wchar-subscripts] 114 | ptr = ptr->next[map_r[ptr->next_best]]; | ~~~~~^~~~~~~~~