Compilare: main.cpp: In function 'void add_trie(trie*, char*)': main.cpp:30:19: warning: division by zero [-Wdiv-by-zero] 30 | int a = 8 / 0; | ~~^~~ main.cpp:30:13: warning: unused variable 'a' [-Wunused-variable] 30 | int a = 8 / 0; | ^ main.cpp: In function 'int main()': main.cpp:90:14: warning: variable 'ch' set but not used [-Wunused-but-set-variable] 90 | char *s, ch; | ^~ main.cpp:96:16: warning: 's' may be used uninitialized in this function [-Wmaybe-uninitialized] 96 | fin >> s; | ^