Compilare: user.cpp:22: warning: ‘typedef’ was ignored in this declaration user.cpp: In function ‘int del(Trie*, char*)’: user.cpp:44: warning: suggest parentheses around assignment used as truth value user.cpp: In function ‘int cuv(Trie*, char*)’: user.cpp:61: warning: suggest parentheses around assignment used as truth value user.cpp: In function ‘int pref(Trie*, char*, int)’: user.cpp:70: warning: suggest parentheses around assignment used as truth value user.cpp: In function ‘int main()’: user.cpp:79: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:80: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:82: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result user.cpp:93: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result