217. Contains Duplicate

Problem

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Difficulty: Easy
Tags: Array, Hash Table, Sorting

Intuition

internet is dumb

Approach

I hate C

Solution

class Solution:
    def containsDuplicate(self, nums: list[int]) -> bool:
        return len(nums) != len(set(nums))

Complexity

• Time: $O(n)$

• Space: $O(n)$