You are given an Integer list 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 = [1,1,2,3]
Output: true
Explanation: '1' appears twice

Example 2:

Input: nums = [1, 5, 18, 3]
Output: false
Explanation: All elements where unique

Constraints
n == nums.size()
1 <= n < 10