Count Good, Sum Bad

In a list of numbers, you may want to measure positive and negative values separately. Write count_positives_sum_negatives, which returns a two-element list: the count of positive numbers and the sum of negative numbers. Zero is neither positive nor negative, and if the input list is empty, return an empty list.

Примеры

Ввод
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, -11, -12, -13, -14, -15]
Вывод
[10, -65]
Ввод
[0, 2, 3, 0, 5, 6, 7, 8, 9, 10, -11, -12, -13, -14]
Вывод
[8, -50]
Ввод
[]
Вывод
[]

Нужно реализовать

def count_positives_sum_negatives(arr: list[int]) -> list[int]:

Теги

listsarraymath
PostgreSQLv16

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