def get_ranks(input_array):
    data = sorted(input_array)
    if len(data) == 0:
        return []
    data_with_count = []
    for elem in data:
        if len(data_with_count) == 0:
            data_with_count.append([elem, 1])
        else:
            if elem == data_with_count[-1][0]:
                data_with_count[-1][1] += 1
            else:
                data_with_count.append([elem, 1])
    start_rank = 1
    rank_data = {}
    for elem, count in data_with_count:
        finish_rank = start_rank + count - 1
        rank_data[elem] = (start_rank + finish_rank) / 2.0
        start_rank = finish_rank + 1
    return [rank_data[elem] for elem in input_array]

# print (get_ranks([0, 0, 1, 1, 3, 3, 3]))
# print (get_ranks([1, 2, 3, 4]))
print (get_ranks([2,3,1,3,4,5]))
print (get_ranks([1, 2, 3, 4, 5]))
print (get_ranks([-1, -3, 1, 1]))