Intersection of Two Arrays

Example:Given nums1 = [1, 2, 2, 1], nums2 = [2, 2], return[2].

Note:

class Solution(object):def intersection(self, nums1, nums2):    """    :type nums1: List[int]    :type nums2: List[int]    :rtype: List[int]    """    nums1=set(nums1)    nums2=set(nums2)    return list(nums1&nums2)
class Solution(object):    def intersection(self, nums1, nums2):        """        :type nums1: List[int]        :type nums2: List[int]        :rtype: List[int]        """        res = [str for str in nums1 if str in nums2]        return list(set(res))