Compilare: main.cpp: In constructor 'Trie::Trie()': main.cpp:15:34: warning: passing NULL to non-pointer argument 2 of 'void* memset(void*, int, size_t)' [-Wconversion-null] memset(fiu, NULL, sizeof(fiu)); ^ main.cpp: In function 'int main()': main.cpp:80:7: warning: unused variable 'i' [-Wunused-variable] int i, n ; ^ main.cpp:80:10: warning: unused variable 'n' [-Wunused-variable] int i, n ; ^ main.cpp: In function 'int querry2(Trie*, char*, int)': main.cpp:64:1: warning: control reaches end of non-void function [-Wreturn-type] } ^