{ "data": { "question": { "questionId": "2504", "questionFrontendId": "2420", "boundTopicId": null, "title": "Find All Good Indices", "titleSlug": "find-all-good-indices", "content": "

You are given a 0-indexed integer array nums of size n and a positive integer k.

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We call an index i in the range k <= i < n - k good if the following conditions are satisfied:

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Return an array of all good indices sorted in increasing order.

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Example 1:

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\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.
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Example 2:

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\nInput: nums = [2,1,1,2], k = 2\nOutput: []\nExplanation: There are no good indices in this array.\n
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Constraints:

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Python 2.7.12.

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Most libraries are already imported automatically for your convenience, such as array, bisect, collections. If you need more libraries, you can import it yourself.

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For Map/TreeMap data structure, you may use sortedcontainers library.

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Python 3.10.

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Scala 2.13.7.

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Kotlin 1.9.0.

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Rust 1.58.1

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With bcmath module

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TypeScript 5.1.6, Node.js 16.13.2.

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