Hi, here's your problem today. This problem was recently asked by Amazon:
Given two arrays, write a function to compute their intersection - the intersection means the numbers that are in both arrays.
Input: nums1 = [1,2,2,1], nums2 = [2,2] Output: 
Input: nums1 = [4,9,5], nums2 = [9,4,9,8,4] Output: [9,4]
Note: Each element in the result must be unique. The result can be in any order.
Here's a starting point:
class Solution: def intersection(self, nums1, nums2): # Fill this in. print Solution().intersection([4, 9, 5], [9, 4, 9, 8, 4]) # [9, 4]