Consider an array of n integers, numbers. We define a non-unique value of numbers to be an integer that appears at least twice in the array. For example, if numbers = [1, 1, 2, 2, 2, 3, 4, 3, 9], then there are a total of 3 non-unique values in the array (i.e., 1, 2, and 3).

Complete the countDuplicates function. It has 1 parameter: an array of integers, numbers. It must return an integer denoting the number of non-unique values in the numbers array.

Input The first line contains an integer, n, denoting the size of the numbers array. Each line i of the n subsequent lines (where 0 i < n) contains an integer describing the value of numbers[i]. Constraints 1 n 1000 1 numbers[i] 1000

Output The function must return an integer denoting the number of non-unique values in numbers. This is printed to stdout by locked stub code in the editor. in Python3