[LeetCode] Rotate Array

Question：

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]

.

1、题型分类：

2、思路：

3、时间复杂度：

4、代码：

public class Solution {
public void rotate(int[] nums, int k) {
int len=nums.length;
k=k%len;
int [] temp=new int[len+k];
System.arraycopy(nums, 0, temp, k, len);
System.arraycopy(temp, len, temp, 0, k);
System.arraycopy(temp, 0, nums, 0, len);
}
}

5、优化：

6、扩展：