217

217. Contains Duplicate

Really easy question - are there duplicates in this list of integers?

The solution is as follows:

class Solution:
    def containsDuplicate(self, nums: List[int]) -> bool:
        return len(set(nums)) < len(nums)

_ Time Complexity:

O(n) - We create a set from a list of integers.

_ Space Complexity:

O(n) - We create a set from a list of integers.