Compilare: main.cpp: In function 'void add_relevance(const char*, int)': main.cpp:50:43: warning: array subscript has type 'char' [-Wchar-subscripts] 50 | if (!ptr->next[map_r[str[i]]]) { | ~~~~~^ main.cpp:51:46: warning: array subscript has type 'char' [-Wchar-subscripts] 51 | ptr->next[map_r[str[i]]] = new TrieNode; | ~~~~~^ main.cpp:53:44: warning: array subscript has type 'char' [-Wchar-subscripts] 53 | ptr = ptr->next[map_r[str[i]]]; | ~~~~~^ main.cpp: In function 'void best_str(const char*)': main.cpp:110:39: warning: array subscript has type 'char' [-Wchar-subscripts] 110 | ptr = ptr->next[map_r[next]]; | ^~~~ main.cpp:115:44: warning: array subscript has type 'char' [-Wchar-subscripts] 115 | ptr = ptr->next[map_r[ptr->next_best]]; | ~~~~~^~~~~~~~~