leetcode-problemset/leetcode/originData/find-the-longest-equal-subarray.json

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            "questionId": "2832",
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            "title": "Find the Longest Equal Subarray",
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            "content": "<p>You are given a <strong>0-indexed</strong> integer array <code>nums</code> and an integer <code>k</code>.</p>\n\n<p>A subarray is called <strong>equal</strong> if all of its elements are equal. Note that the empty subarray is an <strong>equal</strong> subarray.</p>\n\n<p>Return <em>the length of the <strong>longest</strong> possible equal subarray after deleting <strong>at most</strong> </em><code>k</code><em> elements from </em><code>nums</code>.</p>\n\n<p>A <b>subarray</b> is a contiguous, possibly empty sequence of elements within an array.</p>\n\n<p>&nbsp;</p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> nums = [1,3,2,3,1,3], k = 3\n<strong>Output:</strong> 3\n<strong>Explanation:</strong> It&#39;s optimal to delete the elements at index 2 and index 4.\nAfter deleting them, nums becomes equal to [1, 3, 3, 3].\nThe longest equal subarray starts at i = 1 and ends at j = 3 with length equal to 3.\nIt can be proven that no longer equal subarrays can be created.\n</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> nums = [1,1,2,2,1,1], k = 2\n<strong>Output:</strong> 4\n<strong>Explanation:</strong> It&#39;s optimal to delete the elements at index 2 and index 3.\nAfter deleting them, nums becomes equal to [1, 1, 1, 1].\nThe array itself is an equal subarray, so the answer is 4.\nIt can be proven that no longer equal subarrays can be created.\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= nums.length &lt;= 10<sup>5</sup></code></li>\n\t<li><code>1 &lt;= nums[i] &lt;= nums.length</code></li>\n\t<li><code>0 &lt;= k &lt;= nums.length</code></li>\n</ul>\n",
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            "exampleTestcases": "[1,3,2,3,1,3]\n3\n[1,1,2,2,1,1]\n2",
            "categoryTitle": "Algorithms",
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                {
                    "name": "Array",
                    "slug": "array",
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                    "name": "Hash Table",
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                    "name": "Binary Search",
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                    "lang": "C++",
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                    "code": "class Solution {\npublic:\n    int longestEqualSubarray(vector<int>& nums, int k) {\n        \n    }\n};",
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                    "lang": "Java",
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                    "code": "class Solution {\n    public int longestEqualSubarray(List<Integer> nums, int k) {\n        \n    }\n}",
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                },
                {
                    "lang": "Python",
                    "langSlug": "python",
                    "code": "class Solution(object):\n    def longestEqualSubarray(self, nums, k):\n        \"\"\"\n        :type nums: List[int]\n        :type k: int\n        :rtype: int\n        \"\"\"\n        ",
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                    "lang": "Python3",
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                    "code": "class Solution:\n    def longestEqualSubarray(self, nums: List[int], k: int) -> int:\n        ",
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                    "lang": "C",
                    "langSlug": "c",
                    "code": "int longestEqualSubarray(int* nums, int numsSize, int k){\n\n}",
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                    "lang": "C#",
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                    "code": "public class Solution {\n    public int LongestEqualSubarray(IList<int> nums, int k) {\n        \n    }\n}",
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                {
                    "lang": "JavaScript",
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                    "code": "/**\n * @param {number[]} nums\n * @param {number} k\n * @return {number}\n */\nvar longestEqualSubarray = function(nums, k) {\n    \n};",
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                    "code": "function longestEqualSubarray(nums: number[], k: number): number {\n\n};",
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                    "lang": "PHP",
                    "langSlug": "php",
                    "code": "class Solution {\n\n    /**\n     * @param Integer[] $nums\n     * @param Integer $k\n     * @return Integer\n     */\n    function longestEqualSubarray($nums, $k) {\n        \n    }\n}",
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                    "lang": "Swift",
                    "langSlug": "swift",
                    "code": "class Solution {\n    func longestEqualSubarray(_ nums: [Int], _ k: Int) -> Int {\n        \n    }\n}",
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                    "lang": "Kotlin",
                    "langSlug": "kotlin",
                    "code": "class Solution {\n    fun longestEqualSubarray(nums: List<Int>, k: Int): Int {\n        \n    }\n}",
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                    "lang": "Dart",
                    "langSlug": "dart",
                    "code": "class Solution {\n  int longestEqualSubarray(List<int> nums, int k) {\n\n  }\n}",
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                    "lang": "Go",
                    "langSlug": "golang",
                    "code": "func longestEqualSubarray(nums []int, k int) int {\n    \n}",
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                {
                    "lang": "Ruby",
                    "langSlug": "ruby",
                    "code": "# @param {Integer[]} nums\n# @param {Integer} k\n# @return {Integer}\ndef longest_equal_subarray(nums, k)\n    \nend",
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                    "lang": "Scala",
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                    "code": "object Solution {\n    def longestEqualSubarray(nums: List[Int], k: Int): Int = {\n        \n    }\n}",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Rust",
                    "langSlug": "rust",
                    "code": "impl Solution {\n    pub fn longest_equal_subarray(nums: Vec<i32>, k: i32) -> i32 {\n        \n    }\n}",
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                {
                    "lang": "Racket",
                    "langSlug": "racket",
                    "code": "(define/contract (longest-equal-subarray nums k)\n  (-> (listof exact-integer?) exact-integer? exact-integer?)\n\n  )",
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                },
                {
                    "lang": "Erlang",
                    "langSlug": "erlang",
                    "code": "-spec longest_equal_subarray(Nums :: [integer()], K :: integer()) -> integer().\nlongest_equal_subarray(Nums, K) ->\n  .",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Elixir",
                    "langSlug": "elixir",
                    "code": "defmodule Solution do\n  @spec longest_equal_subarray(nums :: [integer], k :: integer) :: integer\n  def longest_equal_subarray(nums, k) do\n\n  end\nend",
                    "__typename": "CodeSnippetNode"
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            "hints": [
                "<div class=\"_1l1MA\">For each number <code>x</code> in <code>nums</code>, create a sorted list <code>indices<sub>x</sub></code> of all indices <code>i</code> such that <code>nums[i] == x</code>.</div>",
                "<div class=\"_1l1MA\">On every <code>indices<sub>x</sub></code>, execute a sliding window technique.</div>",
                "<div class=\"_1l1MA\">For each <code>indices<sub>x</sub></code>, find <code>i, j</code> such that <code>(indices<sub>x</sub>[j] - indices<sub>x</sub>[i]) - (j - i) <= k</code> and <code>j - i + 1</code> is maximized.</div>",
                "<div class=\"_1l1MA\">The answer would be the maximum of <code>j - i + 1</code> for all <code>indices<sub>x</sub></code>.</div>"
            ],
            "solution": null,
            "status": null,
            "sampleTestCase": "[1,3,2,3,1,3]\n3",
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