Rotate Array

Rotate an array of n elements to the right by k steps.

For example, with n = 7 and k = 3, the array [1,2,3,4,5,6,7] is rotated to [5,6,7,1,2,3,4].

Note: Try to come up as many solutions as you can, there are at least 3 different ways to solve this problem.

[show hint]

Hint: Could you do it in-place with O(1) extra space?

class Solution {
public:
    void rotate(vector<int>& nums, int k) {
        int n = nums.size();

        k = k % n;

        reverse(nums.begin(), nums.end());

        reverse(nums.begin(), nums.begin() + k);
        reverse(nums.begin() + k, nums.end());
    }
};