6300. Minimum public value

6300. Minimum public value

Thought：

Originally intending to use the meta group one by one to find one by one，But timeout。
Then useintersectionFunction inO(1)Solution at time complexity

Code：

class Solution:
    def getCommon(self, nums1: List[int], nums2: List[int]) -> int:
        common = set(nums1).intersection(nums2)
        if common:
            return min(common)
        return -1