"""
    LeetCode 217. Contains Duplicate

    Given an array of integers, find if the array contains any duplicates.

    Your function should return true if any value appears at least twice in the array,
    and it should return false if every element is distinct.

    Example 1:

    Input: [1,2,3,1]
    Output: true
    Example 2:

    Input: [1,2,3,4]
    Output: false
    Example 3:

    Input: [1,1,1,3,3,4,3,2,4,2]
    Output: true
"""


from collections import Counter


def does_array_contains_duplicate(arr):
    """
        :param arr: Input Array
        :return: True if array does not contain duplicates, False otherwise
    """
    count_dict = Counter(arr)
    for key in count_dict:
        if count_dict[key] > 1:
            return True
    return False
