leetcode之189. Rotate Array（C++解法）

题目：
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]

Related problem: Reverse Words in a String II
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class Solution {
public:
void rotate(vector& nums, int k) {
int coun=nums.size();
vector num1(coun,0);
for(int j=0;j