Given two integer arrays A and B respectively, Write a program to find the intersection of these two arrays.
- The intersection of two arrays is a list of distinct numbers which are present in both the arrays.
- Each element in the result must be unique.
- The result can be in any order.
Input: A = [1,2,2,1], B = [2,2] Output: 
Input: A = [4,9,5], B = [9,4,9,8,4] Output: [9,4]