Solution.py

class Solution:
    def isPossible(self, nums: List[int]) -> bool:
        d = defaultdict(list)
        for v in nums:
            if h := d[v - 1]:
                heappush(d[v], heappop(h) + 1)
            else:
                heappush(d[v], 1)
        return all(not v or v and v[0] > 2 for v in d.values())