Using defaultdict
Code
# Code\n```python3 []\nclass Solution:\n    def winningPlayerCount(self, n: int, pick: List[List[int]]) -> int:\n        # Initialize a list of defaultdicts to count occurrences of each ball for each player\n        players = [defaultdict(int) for _ in range(n)]\n\n        # Populate the players list with ball counts\n        for player, ball in pick:\n            players[player][ball] += 1\n\n        # Calculate the number of players who have more of their most frequently picked ball than their index\n        return sum(max(balls.values(), default=0) > i for i, balls in enumerate(players))\n```
['Python3']