public class Solution {

    public void reverse(int[] nums, int start, int end)

        {

            while (start < end)

            {

                int temp = nums[start];

                nums[start] = nums[end];

                nums[end] = temp;

                start++;

                end--;

            }

        }

        public void Rotate(int[] nums, int k)

        {

            k %= nums.Length;

            reverse(nums, , nums.Length - );

            reverse(nums, , k - );

            reverse(nums, k, nums.Length - );

        }

}

 class Solution:

     def rotate(self, nums: List[int], k: int) -> None:

         """

         Do not return anything, modify nums in-place instead.

         """

         n = len(nums)

         part1 = nums[n-k:]

         part2 = nums[:n-k]

         nums.clear()

         nums.extend(part1)

         nums.extend(part2)