leetcode 189. 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.

class Solution {
public:
void rotate(vector<int>& nums, int k) {
int n=nums.size();
k %= n;
reverse(nums.begin(), nums.begin()+(n-k));
reverse(nums.begin()+(n-k), nums.end());
reverse(nums.begin(), nums.end());

}
};

转载于:https://www.cnblogs.com/mmziscoming/p/5440277.html