Let the address range of the hash table be 0-9, and the hash function H (k)=(k2+2) mod 9.

1 - If a linked list is used to handle conflicts, please draw the storage structure of elements 7, 4, 5, 3, 6, 2, 8 and 9 inserted into the hash table successively

2 - How many times to find the number 9 in this hash table?