2025-08-17 10:34:11 +0000 UTC

class Solution:
    def countPoints(self, rings: str) -> int:
        rods = [(False, False, False)] * 10
        res = 0
        for i in range(0, len(rings), 2):
            rod = int(rings[i + 1])
            color = rings[i]
            has_red, has_green, has_blue = rods[rod]
            if color == "R":
                has_red = True
            elif color == "G":
                has_green = True
            else:
                has_blue = True
            rods[rod] = (has_red, has_green, has_blue)
        for vals in rods:
            if all(vals):
                res += 1
        return res