Given an integer array nums, return true if any value appears at least twice, and false if every element is distinct.
Example 1
Input: nums = [1,2,3,1]
Output: true
Example 2
Input: nums = [1,2,3,4]
Output: false
Constraints
1 <= nums.length <= 100000-1000000000 <= nums[i] <= 1000000000Input
nums = [1,2,3,1]
Expected
true
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