Compilare: main.cpp: In function 'void Adaugare(Trie*, char*)': main.cpp:19:12: warning: NULL used in arithmetic [-Wpointer-arith] 19 | if(*s==NULL) {nod->cnt++;return;} | ^~~~ main.cpp: In function 'bool Stergere(Trie*, char*)': main.cpp:29:12: warning: NULL used in arithmetic [-Wpointer-arith] 29 | if(*s==NULL) nod->cnt--; | ^~~~ main.cpp: In function 'int NrAparitii(Trie*, char*)': main.cpp:41:12: warning: NULL used in arithmetic [-Wpointer-arith] 41 | if(*s==NULL) return nod->cnt; | ^~~~ main.cpp: In function 'int Prefix(Trie*, char*, int)': main.cpp:47:12: warning: NULL used in arithmetic [-Wpointer-arith] 47 | if(*s==NULL || !nod->fiu[*s-'a']) return nivel; | ^~~~