Compilare: user.cpp: In function ‘int bs(int)’: user.cpp:64: warning: unused variable ‘val’ user.cpp: In function ‘void insert(Trie*, char*)’: user.cpp:93: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp: In function ‘bool exista(Trie*, char*)’: user.cpp:109: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp: In function ‘void TrieQuery(Trie*, int)’: user.cpp:130: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp: In function ‘int main()’: user.cpp:178: warning: unused variable ‘s’ user.cpp: In function ‘bool exista(Trie*, char*)’: user.cpp:115: warning: control reaches end of non-void function