Задача ЕНТ — Программирование Python

def process(arr):
    result = []
    for x in arr:
        if x > 0:
            result.append(x * 2)
    return result

nums = [-3, 4, -1, 5, 0, 7, -2]
ans = process(nums)
print(sum(ans))
print(len(ans))
print(max(ans))