The answer is character encoding. It is used in a way to represent charaters and
in which can be used in different or even in languages that are multipled. This
type of character standard uses sixteen bits in order for it to function.
Answer:
First we understand what is hash function.A hash function is mostly used in Hashmaps. It maps different keys to a set of values.There may occur a case when we have same key but different values.This case is called collision.So we have to use different collision handling techniques that are open addressing and separate chaining.
A perfect hash function maps key-value pair such that there are no collisions.
