publicclassWiggleSortII{ /** * Given an unsorted array nums, reorder it such that nums[0] < nums[1] > nums[2] < nums[3].... * * Example 1: * * Input: nums = [1, 5, 1, 1, 6, 4] * Output: One possible answer is [1, 4, 1, 5, 1, 6]. * Example 2: * * Input: nums = [1, 3, 2, 2, 3, 1] * Output: One possible answer is [2, 3, 1, 3, 1, 2]. * Note: * You may assume all input has valid answer. * * Follow Up: * Can you do it in O(n) time and/or in-place with O(1) extra space? */ publicvoidwiggleSort(int[] nums){ Arrays.sort(nums); int start = 0; int n = nums.length; int end = nums.length;