Compilare: main.cpp: In member function 'int Trie::search2(Node*, char*, int)': main.cpp:58:18: warning: NULL used in arithmetic [-Wpointer-arith] 58 | if(*s == NULL || poz->fii[x] == NULL || !poz->fii[x]->nr) | ^~~~ main.cpp: In member function 'int Trie::search1(Node*, char*)': main.cpp:52:16: warning: control reaches end of non-void function [-Wreturn-type] 52 | search1(poz->fii[x], s + 1); | ~~~~~~~^~~~~~~~~~~~~~~~~~~~