Compilare: main.cpp: In function 'void Lg(trie*)': main.cpp:53:29: warning: array subscript has type 'char' [-Wchar-subscripts] if(*it==0 || t->child[ch] == false) ^ main.cpp:59:19: warning: array subscript has type 'char' [-Wchar-subscripts] Lg(t->child[ch]); ^ main.cpp: In function 'int Cnt(trie*)': main.cpp:66:19: warning: array subscript has type 'char' [-Wchar-subscripts] if(t->child[ch] == false) ^ main.cpp:70:27: warning: array subscript has type 'char' [-Wchar-subscripts] return Cnt(t->child[ch]); ^ main.cpp: In function 'void Del(trie*)': main.cpp:80:20: warning: array subscript has type 'char' [-Wchar-subscripts] Del(t->child[ch]); ^ main.cpp:82:19: warning: array subscript has type 'char' [-Wchar-subscripts] if(t->child[ch]->nrchild == 0 && t->child[ch]->nr == 0){ ^ main.cpp:82:49: warning: array subscript has type 'char' [-Wchar-subscripts] if(t->child[ch]->nrchild == 0 && t->child[ch]->nr == 0){ ^ main.cpp:84:27: warning: array subscript has type 'char' [-Wchar-subscripts] delete t->child[ch]; ^ main.cpp:85:20: warning: array subscript has type 'char' [-Wchar-subscripts] t->child[ch]=0; ///Why? ^ main.cpp: In function 'void Add(trie*)': main.cpp:96:19: warning: array subscript has type 'char' [-Wchar-subscripts] if(t->child[ch] == false){ ^ main.cpp:97:20: warning: array subscript has type 'char' [-Wchar-subscripts] t->child[ch]= new trie(); ^ main.cpp:102:20: warning: array subscript has type 'char' [-Wchar-subscripts] Add(t->child[ch]); ^