from linked_list_phonebook import ll_insert, ll_find, ll_delete, ll_list_all def hash_function(name, table_size): hash_value = 0 for char in name: hash_value = (hash_value * 31 + ord(char)) % table_size return hash_value def create_hash_table(size=1000): return [None] * size def ht_insert(buckets, name, phone): index = hash_function(name, len(buckets)) buckets[index] = ll_insert(buckets[index], name, phone) def ht_find(buckets, name): index = hash_function(name, len(buckets)) return ll_find(buckets[index], name) def ht_delete(buckets, name): index = hash_function(name, len(buckets)) buckets[index] = ll_delete(buckets[index], name) def ht_list_all(buckets): all_records = [] for head in buckets: if head is not None: all_records.extend(ll_list_all(head)) all_records.sort(key=lambda x: x[0]) return all_records