Compilare: main.cpp: In function 'void insert(char*, int)': main.cpp:41:28: warning: array subscript has type 'char' [-Wchar-subscripts] if(curr -> nxt[S[i]] == NULL) ^ main.cpp:42:29: warning: array subscript has type 'char' [-Wchar-subscripts] curr -> nxt[S[i]] = new trieNode; ^ main.cpp:43:32: warning: array subscript has type 'char' [-Wchar-subscripts] curr = curr -> nxt[S[i]]; ^ main.cpp: In function 'int main()': main.cpp:103:55: warning: array subscript has type 'char' [-Wchar-subscripts] while(currNode != root && currNode -> nxt[C[i]] == NULL) ^ main.cpp:105:32: warning: array subscript has type 'char' [-Wchar-subscripts] if(currNode -> nxt[C[i]] != NULL) ^ main.cpp:106:44: warning: array subscript has type 'char' [-Wchar-subscripts] currNode = currNode -> nxt[C[i]]; ^