2103. Rings and Rods

Обновлено: 2024-03-12
1 мин
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Содержание

LeetCode problem 2103

class Solution:
    def countPoints(self, rings: str) -> int:
        mask = [0] * 10
        d = {"R": 1, "G": 2, "B": 4}
        for i in range(0, len(rings), 2):
            c = rings[i]
            j = int(rings[i + 1])
            mask[j] |= d[c]
        return mask.count(7)