Count Number of Teams LeetCode solution in Python

1
class Solution:
2
    def numTeams(self, ratings: List[int]) -> int:
3
        upper_dps = [0 for _ in range(len(ratings))]
4
        lower_dps = [0 for _ in range(len(ratings))]
5

6
        count = 0
7
        for i in range(len(ratings)):
8
            for j in range(i):
9
                if ratings[j] < ratings[i]:
10
                    count += upper_dps[j]
11
                    upper_dps[i] += 1
12
                else:
13
                    count += lower_dps[j]
14
                    lower_dps[i] += 1
15

16
        return count