Compilare: user.cpp: In constructor ‘Trie::Trie()’: user.cpp:16:32: warning: array subscript has type ‘char’ [-Wchar-subscripts] for(char i=0;i<26;++i) next[i]=0; ^ user.cpp: In function ‘void insertTrie1(Trie*, int)’: user.cpp:29:17: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(nod->next[ch]) { ^ user.cpp:30:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] Trie *jeg=nod->next[ch]; ^ user.cpp:36:15: warning: array subscript has type ‘char’ [-Wchar-subscripts] nod->next[ch]=new Trie; ^ user.cpp:37:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] Trie *jeg=nod->next[ch]; ^ user.cpp:44:26: warning: array subscript has type ‘char’ [-Wchar-subscripts] insertTrie1(nod->next[ch],pos+1); ^ user.cpp: In function ‘void insertTrie2(Trie*, int)’: user.cpp:51:17: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(nod->next[ch]) { ^ user.cpp:52:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] Trie *jeg=nod->next[ch]; ^ user.cpp:57:26: warning: array subscript has type ‘char’ [-Wchar-subscripts] insertTrie2(nod->next[ch],pos+1); ^