380. Insert Delete GetRandom O(1)LeetCodeImplement the RandomizedSet class:- RandomizedSet() Initializes the RandomizedSet object.- bool insert(int val) Inserts an item val into the set if not present. Returns true if the item was not present, false otherwise.- bool remove(int val) Removes an item val from the set if present. Returns true if the item was present, false otherwise.- int getRandom(..