189. Rotate Array

https://leetcode.com/problems/rotate-array

Python

Extra Array

• Time: O(n)
• Space: O(n)

class Solution:
    def rotate(self, nums: List[int], k: int) -> None:
        k = k % len(nums)
        result = nums[-k:] + nums[:-k]

        for i in range(len(result)):
            nums[i] = result[i]

simplify version

class Solution:
    def rotate(self, nums: List[int], k: int) -> None:
        k = k % len(nums)
        nums[:] = nums[-k:] + nums[:-k]