Contains Duplicate 🌳

Input: nums = [1,2,3,1]
Output: true
Input: nums = [1,2,3,4]
Output: false
Input: nums = [1,1,1,3,3,4,3,2,4,2]
Output: true
  • 1 <= nums.length <= 105
  • -109 <= nums[i] <= 109

Solution

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