from typing import List
import pytest


class Solution:
    def longestConsecutive(self, nums: List[int]) -> int:
        if len(nums) == 0:
            return 0
        res: List[List[int]] = []
        for i in range(0, len(nums)):
            if i == 0:
                res.append([nums[i]])
                continue
            e = nums[i]
            for ri in range(0, len(res)):
                if res[ri][-1] + 1 == e:
                    res[ri].append(e)
                    break
            res.append([e])
        return res
        return max([len(r) for r in res])


@pytest.mark.parametrize(
    "input_value, expected_value",
    [
        ([2, 20, 4, 10, 3, 4, 5], 4),
        ([0, 3, 2, 5, 4, 6, 1, 1], 7),
    ],
)
def test_solution(input_value, expected_value):
    s = Solution()
    assert s.longestConsecutive(nums=input_value) == expected_value