You are given a 0-indexed integer array nums of size n and a positive integer k.
We call an index i in the range k <= i < n - k good if the following conditions are satisfied:
k elements that are just before the index i are in non-increasing order.k elements that are just after the index i are in non-decreasing order.Return an array of all good indices sorted in increasing order.
\n\n\n
Example 1:
\n\n\nInput: nums = [2,1,1,1,3,4,1], k = 2\nOutput: [2,3]\nExplanation: There are two good indices in the array:\n- Index 2. The subarray [2,1] is in non-increasing order, and the subarray [1,3] is in non-decreasing order.\n- Index 3. The subarray [1,1] is in non-increasing order, and the subarray [3,4] is in non-decreasing order.\nNote that the index 4 is not good because [4,1] is not non-decreasing.\n\n
Example 2:
\n\n\nInput: nums = [2,1,1,2], k = 2\nOutput: []\nExplanation: There are no good indices in this array.\n\n\n
\n
Constraints:
\n\nn == nums.length3 <= n <= 1051 <= nums[i] <= 1061 <= k <= n / 2给你一个大小为 n 下标从 0 开始的整数数组 nums 和一个正整数 k 。
对于 k <= i < n - k 之间的一个下标 i ，如果它满足以下条件，我们就称它为一个 好 下标：
i 之前 的 k 个元素是 非递增的 。i 之后 的 k 个元素是 非递减的 。按 升序 返回所有好下标。
\n\n\n\n
示例 1：
\n\n\n输入：nums = [2,1,1,1,3,4,1], k = 2\n输出：[2,3]\n解释：数组中有两个好下标：\n- 下标 2 。子数组 [2,1] 是非递增的，子数组 [1,3] 是非递减的。\n- 下标 3 。子数组 [1,1] 是非递增的，子数组 [3,4] 是非递减的。\n注意，下标 4 不是好下标，因为 [4,1] 不是非递减的。\n\n
示例 2：
\n\n\n输入：nums = [2,1,1,2], k = 2\n输出：[]\n解释：数组中没有好下标。\n\n\n
\n\n
提示：
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