Compilare: user.cpp: In function ‘void readOperations()’: user.cpp:74:39: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[26]’ [-Wformat=] while(scanf("%d %s", &operatie, &s) != EOF) ^ user.cpp: In function ‘int main()’: user.cpp:91:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("trie.in", "r", stdin); ^ user.cpp:92:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("trie.out", "w", stdout); ^