Compilare: user.cpp:11:2: warning: ‘typedef’ was ignored in this declaration [enabled by default] }; ^ user.cpp: In function ‘void dfs(trie*)’: user.cpp:36:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i<nod->cuv.size(); ++i) ^ user.cpp: In function ‘int main()’: user.cpp:46:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("litere2.in", "r", stdin); ^ user.cpp:47:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("litere2.out", "w", stdout); ^ user.cpp:49:9: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result [-Wunused-result] gets(s); ^ /tmp/cc2fbgCZ.o: In function `main': user.cpp:(.text.startup+0x67): warning: the `gets' function is dangerous and should not be used.