Eroare de compilare: user.cpp: In function ‘int sterg(trie*, char*)’: user.cpp:32:27: error: ‘del’ was not declared in this scope if(del(nod->fiu[C],s+1)) ^ user.cpp: In function ‘int main()’: user.cpp:55:27: error: ‘f’ was not declared in this scope freopen("trie.in","r",f); ^ user.cpp:56:28: error: ‘g’ was not declared in this scope freopen("trie.out","w",g); ^ user.cpp:57:11: error: ‘line’ was not declared in this scope fgets(line,40,f); ^~~~ user.cpp: In function ‘int pref(trie*, char*, int)’: user.cpp:52:1: warning: control reaches end of non-void function [-Wreturn-type] } ^