Java for 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].

解题思路：

JAVA实现如下：

    public void rotate(int[] nums, int k) {
        k%=nums.length;
        k=nums.length-k;
        int[] nums2=new int[k];
        for(int i=0;i<k;i++)
        	nums2[i]=nums[i];
        for(int i=0;i<nums.length-k;i++)
        	nums[i]=nums[i+k];
        for(int i=0;i<k;i++)
        	nums[nums.length-k+i]=nums2[i];
    }

 

转载于:https://www.cnblogs.com/tonyluis/p/4557341.html