leetcode-189. Rotate Array
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]
.
java代码:
public class Solution { public void rotate(int[] nums, int k) { k=k%nums.length; int[] a=new int[nums.length]; for(int i=0;i<nums.length;i++){ a[(i+k+nums.length)%nums.length]=nums[i]; } for(int i=0;i<nums.length;i++){ nums[i]=a[i]; } } }