Eroare de compilare: user.cpp: In function ‘void inserare(trie*, char*)’: user.cpp:17: error: ‘strlen’ was not declared in this scope user.cpp: In function ‘void stergere(trie*, char*)’: user.cpp:26: error: ‘strlen’ was not declared in this scope user.cpp: In function ‘int nr_aparitii(trie*, char*)’: user.cpp:34: error: ‘strlen’ was not declared in this scope user.cpp: In function ‘int prefix_comun(trie*, char*)’: user.cpp:44: error: ‘strlen’ was not declared in this scope user.cpp: In function ‘int main()’: user.cpp:52: error: ‘stdin’ was not declared in this scope user.cpp:52: error: ‘freopen’ was not declared in this scope user.cpp:53: error: ‘stdout’ was not declared in this scope