Solution.py

from sortedcontainers import SortedList


class Leaderboard:
    def __init__(self):
        self.d = defaultdict(int)
        self.rank = SortedList()

    def addScore(self, playerId: int, score: int) -> None:
        if playerId not in self.d:
            self.d[playerId] = score
            self.rank.add(score)
        else:
            self.rank.remove(self.d[playerId])
            self.d[playerId] += score
            self.rank.add(self.d[playerId])

    def top(self, K: int) -> int:
        return sum(self.rank[-K:])

    def reset(self, playerId: int) -> None:
        self.rank.remove(self.d.pop(playerId))


# Your Leaderboard object will be instantiated and called as such:
# obj = Leaderboard()
# obj.addScore(playerId,score)
# param_2 = obj.top(K)
# obj.reset(playerId)