Compilare: main.cpp: In function 'void bfs()': main.cpp:53:47: warning: array subscript has type 'char' [-Wchar-subscripts] 53 | while (curr2 != root && curr2->ch[want] == nullptr) { | ^~~~ main.cpp:56:27: warning: array subscript has type 'char' [-Wchar-subscripts] 56 | if (curr2->ch[want] != nullptr) | ^~~~ main.cpp:57:35: warning: array subscript has type 'char' [-Wchar-subscripts] 57 | curr2 = curr2->ch[want]; | ^~~~