2025-08-01 13:43:05 +0000 UTC

class Solution:
    def sortArrayByParityII(self, nums: List[int]) -> List[int]:
        res = [None] * len(nums)
        i1, i2 = 0, 1
        for num in nums:
            if num % 2 == 0:
                res[i1] = num
                i1 += 2
            else:
                res[i2] = num
                i2 += 2
        return res