[1470]重新排列数组

参考：

https://leetcode-cn.com/problems/shuffle-the-array/solution/jian-dan-ti-mu-jian-zhi-jiu-shi-qie-yi-by-brandon-/

class Solution:
    def shuffle(self, nums: List[int], n: int) -> List[int]:
        l = list()

        for i in range(0,n):
            l.append(nums[i])
            l.append(nums[i + n])
        return l