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Contains Duplicate

Given an integer array nums, return true if any value appears at least twice in the array, and return false if every element is distinct.

Sample input output

  Example 1:

  Input: nums = [1,2,3,1]
  Output: true
  Example 2:

  Input: nums = [1,2,3,4]
  Output: false
  Example 3:

  Input: nums = [1,1,1,3,3,4,3,2,4,2]
  Output: true

Solution

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

Congratualtions. Problem is solved.

Happy coding :)