706. Design HashMap | LeetCode | Beginners solution

Follow how our mind solves the coding problem to solve any coding problem.

Design a HashMap without using any built-in hash table libraries.
To be specific, your design should include these functions:

put(key, value) : Insert a (key, value) pair into the HashMap. If the value already exists in the HashMap, update the value.

get(key): Returns the value to which the specified key is mapped, or -1 if this map contains no mapping for the key.

remove(key): Remove the mapping for the value key if this map contains the mapping for the key.