2025-08-01 13:24:11 +0000 UTC

X of a Kind in a Deck of Cards
Categories:
Tags:

Code

import math
import functools

class Solution:
    def hasGroupsSizeX(self, deck: List[int]) -> bool:
        freqs = collections.defaultdict(int)
        for num in deck:
            freqs[num] += 1
        gcd = functools.reduce(math.gcd, freqs.values())
        return gcd > 1