0924. Sum of positive

You get an array of numbers, return the sum of all of the positives ones.

Example [1,-4,7,12] => 1 + 7 + 12 = 20

Note: if there is nothing to sum, the sum is default to 0.

Solution:

def positive_sum(arr):
    return sum(map(remove_negative, arr))

def remove_negative(i: int):
    return i if i >= 0 else 0