Compilare: user.cpp: In function ‘void read()’: user.cpp:60:41: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[26]’ [-Wformat=] while(scanf("%d %s", &operatie, &str)==2) ^ user.cpp: In function ‘int main()’: user.cpp:76:35: 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:77:37: 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); ^