leetcode-problemset/leetcode/originData/count-complete-substrings.json

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        "question": {
            "questionId": "3223",
            "questionFrontendId": "2953",
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            "title": "Count Complete Substrings",
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            "content": "<p>You are given a string <code>word</code> and an integer <code>k</code>.</p>\n\n<p>A substring <code>s</code> of <code>word</code> is <strong>complete</strong> if:</p>\n\n<ul>\n\t<li>Each character in <code>s</code> occurs <strong>exactly</strong> <code>k</code> times.</li>\n\t<li>The difference between two adjacent characters is <strong>at most</strong> <code>2</code>. That is, for any two adjacent characters <code>c1</code> and <code>c2</code> in <code>s</code>, the absolute difference in their positions in the alphabet is <strong>at most</strong> <code>2</code>.</li>\n</ul>\n\n<p>Return <em>the number of <strong>complete </strong>substrings of</em> <code>word</code>.</p>\n\n<p>A <strong>substring</strong> is a <strong>non-empty</strong> contiguous sequence of characters in a string.</p>\n\n<p>&nbsp;</p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> word = &quot;igigee&quot;, k = 2\n<strong>Output:</strong> 3\n<strong>Explanation:</strong> The complete substrings where each character appears exactly twice and the difference between adjacent characters is at most 2 are: <u><strong>igig</strong></u>ee, igig<u><strong>ee</strong></u>, <u><strong>igigee</strong></u>.\n</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> word = &quot;aaabbbccc&quot;, k = 3\n<strong>Output:</strong> 6\n<strong>Explanation:</strong> The complete substrings where each character appears exactly three times and the difference between adjacent characters is at most 2 are: <strong><u>aaa</u></strong>bbbccc, aaa<u><strong>bbb</strong></u>ccc, aaabbb<u><strong>ccc</strong></u>, <strong><u>aaabbb</u></strong>ccc, aaa<u><strong>bbbccc</strong></u>, <u><strong>aaabbbccc</strong></u>.\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= word.length &lt;= 10<sup>5</sup></code></li>\n\t<li><code>word</code> consists only of lowercase English letters.</li>\n\t<li><code>1 &lt;= k &lt;= word.length</code></li>\n</ul>\n",
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            "difficulty": "Hard",
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            "dislikes": 30,
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            "similarQuestions": "[{\"title\": \"Number of Substrings Containing All Three Characters\", \"titleSlug\": \"number-of-substrings-containing-all-three-characters\", \"difficulty\": \"Medium\", \"translatedTitle\": null}, {\"title\": \"Count Substrings Without Repeating Character\", \"titleSlug\": \"count-substrings-without-repeating-character\", \"difficulty\": \"Medium\", \"translatedTitle\": null}]",
            "exampleTestcases": "\"igigee\"\n2\n\"aaabbbccc\"\n3",
            "categoryTitle": "Algorithms",
            "contributors": [],
            "topicTags": [
                {
                    "name": "Hash Table",
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                    "name": "String",
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                    "name": "Sliding Window",
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                {
                    "lang": "C++",
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                    "code": "class Solution {\npublic:\n    int countCompleteSubstrings(string word, int k) {\n        \n    }\n};",
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                    "code": "class Solution {\n    public int countCompleteSubstrings(String word, int k) {\n        \n    }\n}",
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                {
                    "lang": "Python",
                    "langSlug": "python",
                    "code": "class Solution(object):\n    def countCompleteSubstrings(self, word, k):\n        \"\"\"\n        :type word: str\n        :type k: int\n        :rtype: int\n        \"\"\"\n        ",
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                    "lang": "Python3",
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                    "code": "class Solution:\n    def countCompleteSubstrings(self, word: str, k: int) -> int:\n        ",
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                {
                    "lang": "C",
                    "langSlug": "c",
                    "code": "int countCompleteSubstrings(char* word, int k) {\n    \n}",
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                    "lang": "C#",
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                    "code": "public class Solution {\n    public int CountCompleteSubstrings(string word, int k) {\n        \n    }\n}",
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                    "lang": "JavaScript",
                    "langSlug": "javascript",
                    "code": "/**\n * @param {string} word\n * @param {number} k\n * @return {number}\n */\nvar countCompleteSubstrings = function(word, k) {\n    \n};",
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                    "lang": "TypeScript",
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                    "code": "function countCompleteSubstrings(word: string, k: number): number {\n    \n};",
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                    "lang": "PHP",
                    "langSlug": "php",
                    "code": "class Solution {\n\n    /**\n     * @param String $word\n     * @param Integer $k\n     * @return Integer\n     */\n    function countCompleteSubstrings($word, $k) {\n        \n    }\n}",
                    "__typename": "CodeSnippetNode"
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                {
                    "lang": "Swift",
                    "langSlug": "swift",
                    "code": "class Solution {\n    func countCompleteSubstrings(_ word: String, _ k: Int) -> Int {\n        \n    }\n}",
                    "__typename": "CodeSnippetNode"
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                    "lang": "Kotlin",
                    "langSlug": "kotlin",
                    "code": "class Solution {\n    fun countCompleteSubstrings(word: String, k: Int): Int {\n        \n    }\n}",
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                    "lang": "Dart",
                    "langSlug": "dart",
                    "code": "class Solution {\n  int countCompleteSubstrings(String word, int k) {\n    \n  }\n}",
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                    "lang": "Go",
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                    "code": "func countCompleteSubstrings(word string, k int) int {\n    \n}",
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                    "lang": "Ruby",
                    "langSlug": "ruby",
                    "code": "# @param {String} word\n# @param {Integer} k\n# @return {Integer}\ndef count_complete_substrings(word, k)\n    \nend",
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                    "lang": "Scala",
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                    "code": "object Solution {\n    def countCompleteSubstrings(word: String, k: Int): Int = {\n        \n    }\n}",
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                {
                    "lang": "Rust",
                    "langSlug": "rust",
                    "code": "impl Solution {\n    pub fn count_complete_substrings(word: String, k: i32) -> i32 {\n        \n    }\n}",
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                {
                    "lang": "Racket",
                    "langSlug": "racket",
                    "code": "(define/contract (count-complete-substrings word k)\n  (-> string? exact-integer? exact-integer?)\n  )",
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                {
                    "lang": "Erlang",
                    "langSlug": "erlang",
                    "code": "-spec count_complete_substrings(Word :: unicode:unicode_binary(), K :: integer()) -> integer().\ncount_complete_substrings(Word, K) ->\n  .",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Elixir",
                    "langSlug": "elixir",
                    "code": "defmodule Solution do\n  @spec count_complete_substrings(word :: String.t, k :: integer) :: integer\n  def count_complete_substrings(word, k) do\n    \n  end\nend",
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            "hints": [
                "There are at most 26 different lengths of the complete substrings: <code>k *1, k * 2, … k * 26</code>.****",
                "For each length, we can use sliding window to count the frequency of each letter in the window.",
                "We still need to check for all characters in the window that <code>abs(word[i] - word[i - 1]) <= 2</code>. We do this by maintaining the values of <code>abs(word[i] - word[i - 1])</code> in the sliding window dynamically in an ordered multiset or priority queue, so that we know the maximum value at each iteration."
            ],
            "solution": null,
            "status": null,
            "sampleTestCase": "\"igigee\"\n2",
            "metaData": "{\n  \"name\": \"countCompleteSubstrings\",\n  \"params\": [\n    {\n      \"name\": \"word\",\n      \"type\": \"string\"\n    },\n    {\n      \"type\": \"integer\",\n      \"name\": \"k\"\n    }\n  ],\n  \"return\": {\n    \"type\": \"integer\"\n  }\n}",
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