Compilare: user.cpp:5:35: warning: ‘typedef’ was ignored in this declaration [enabled by default] typedef struct trie {trie *pa,*pb;}; ^ user.cpp: In function ‘int main()’: user.cpp:52:29: warning: format ‘%ld’ expects argument of type ‘long int*’, but argument 2 has type ‘int*’ [-Wformat=] scanf("%ld%c%s",&n,&ch,s); ^ user.cpp:56:21: warning: format ‘%ld’ expects argument of type ‘long int’, but argument 2 has type ‘int’ [-Wformat=] printf("%ld\n",l); found[l]=0; ^