2025-08-20 15:45:47 +0000 UTC

class Solution:
    def separateDigits(self, nums: List[int]) -> List[int]:
        res = []
        cur = []
        for num in nums:
            while num > 0:
                cur.append(num % 10)
                num //= 10
            cur.reverse()
            res.extend(cur)
            cur.clear()
        return res