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.
Example 1:
Input: nums = [1,2,3,1]
Output: true
Constraints:
$1 <= nums.length <= 10^5$ $-10^9 <= nums[i] <= 10^9$
| ID | METHOD | LINK |
|---|---|---|
| 1 | Sorting Base Approach | contains-duplicate.md |