leetcode-problemset/leetcode-cn/originData/substring-with-concatenation-of-all-words.json

{
    "data": {
        "question": {
            "questionId": "30",
            "questionFrontendId": "30",
            "categoryTitle": "Algorithms",
            "boundTopicId": 1204,
            "title": "Substring with Concatenation of All Words",
            "titleSlug": "substring-with-concatenation-of-all-words",
            "content": "<p>You are given a string <code>s</code> and an array of strings <code>words</code>. All the strings of <code>words</code> are of <strong>the same length</strong>.</p>\n\n<p>A <strong>concatenated substring</strong> in <code>s</code> is a substring that contains all the strings of any permutation of <code>words</code> concatenated.</p>\n\n<ul>\n\t<li>For example, if <code>words = [&quot;ab&quot;,&quot;cd&quot;,&quot;ef&quot;]</code>, then <code>&quot;abcdef&quot;</code>, <code>&quot;abefcd&quot;</code>, <code>&quot;cdabef&quot;</code>, <code>&quot;cdefab&quot;</code>, <code>&quot;efabcd&quot;</code>, and <code>&quot;efcdab&quot;</code> are all concatenated strings. <code>&quot;acdbef&quot;</code> is not a concatenated substring because it is not the concatenation of any permutation of <code>words</code>.</li>\n</ul>\n\n<p>Return <em>the starting indices of all the concatenated substrings in </em><code>s</code>. You can return the answer in <strong>any order</strong>.</p>\n\n<p>&nbsp;</p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = &quot;barfoothefoobarman&quot;, words = [&quot;foo&quot;,&quot;bar&quot;]\n<strong>Output:</strong> [0,9]\n<strong>Explanation:</strong> Since words.length == 2 and words[i].length == 3, the concatenated substring has to be of length 6.\nThe substring starting at 0 is &quot;barfoo&quot;. It is the concatenation of [&quot;bar&quot;,&quot;foo&quot;] which is a permutation of words.\nThe substring starting at 9 is &quot;foobar&quot;. It is the concatenation of [&quot;foo&quot;,&quot;bar&quot;] which is a permutation of words.\nThe output order does not matter. Returning [9,0] is fine too.\n</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = &quot;wordgoodgoodgoodbestword&quot;, words = [&quot;word&quot;,&quot;good&quot;,&quot;best&quot;,&quot;word&quot;]\n<strong>Output:</strong> []\n<strong>Explanation:</strong> Since words.length == 4 and words[i].length == 4, the concatenated substring has to be of length 16.\nThere is no substring of length 16 in s that is equal to the concatenation of any permutation of words.\nWe return an empty array.\n</pre>\n\n<p><strong class=\"example\">Example 3:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = &quot;barfoofoobarthefoobarman&quot;, words = [&quot;bar&quot;,&quot;foo&quot;,&quot;the&quot;]\n<strong>Output:</strong> [6,9,12]\n<strong>Explanation:</strong> Since words.length == 3 and words[i].length == 3, the concatenated substring has to be of length 9.\nThe substring starting at 6 is &quot;foobarthe&quot;. It is the concatenation of [&quot;foo&quot;,&quot;bar&quot;,&quot;the&quot;] which is a permutation of words.\nThe substring starting at 9 is &quot;barthefoo&quot;. It is the concatenation of [&quot;bar&quot;,&quot;the&quot;,&quot;foo&quot;] which is a permutation of words.\nThe substring starting at 12 is &quot;thefoobar&quot;. It is the concatenation of [&quot;the&quot;,&quot;foo&quot;,&quot;bar&quot;] which is a permutation of words.\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= s.length &lt;= 10<sup>4</sup></code></li>\n\t<li><code>1 &lt;= words.length &lt;= 5000</code></li>\n\t<li><code>1 &lt;= words[i].length &lt;= 30</code></li>\n\t<li><code>s</code> and <code>words[i]</code> consist of lowercase English letters.</li>\n</ul>\n",
            "translatedTitle": "串联所有单词的子串",
            "translatedContent": "<p>给定一个字符串&nbsp;<code>s</code><strong>&nbsp;</strong>和一个字符串数组&nbsp;<code>words</code><strong>。</strong>&nbsp;<code>words</code>&nbsp;中所有字符串 <strong>长度相同</strong>。</p>\n\n<p>&nbsp;<code>s</code><strong>&nbsp;</strong>中的 <strong>串联子串</strong> 是指一个包含&nbsp;&nbsp;<code>words</code>&nbsp;中所有字符串以任意顺序排列连接起来的子串。</p>\n\n<ul>\n\t<li>例如，如果&nbsp;<code>words = [\"ab\",\"cd\",\"ef\"]</code>， 那么&nbsp;<code>\"abcdef\"</code>，&nbsp;<code>\"abefcd\"</code>，<code>\"cdabef\"</code>，&nbsp;<code>\"cdefab\"</code>，<code>\"efabcd\"</code>， 和&nbsp;<code>\"efcdab\"</code> 都是串联子串。&nbsp;<code>\"acdbef\"</code> 不是串联子串，因为他不是任何&nbsp;<code>words</code>&nbsp;排列的连接。</li>\n</ul>\n\n<p>返回所有串联子串在&nbsp;<code>s</code><strong>&nbsp;</strong>中的开始索引。你可以以 <strong>任意顺序</strong> 返回答案。</p>\n\n<p>&nbsp;</p>\n\n<p><strong>示例 1：</strong></p>\n\n<pre>\n<strong>输入：</strong>s = \"barfoothefoobarman\", words = [\"foo\",\"bar\"]\n<strong>输出：</strong><code>[0,9]</code>\n<strong>解释：</strong>因为 words.length == 2 同时 words[i].length == 3，连接的子字符串的长度必须为 6。\n子串 \"barfoo\" 开始位置是 0。它是 words 中以 [\"bar\",\"foo\"] 顺序排列的连接。\n子串 \"foobar\" 开始位置是 9。它是 words 中以 [\"foo\",\"bar\"] 顺序排列的连接。\n输出顺序无关紧要。返回 [9,0] 也是可以的。\n</pre>\n\n<p><strong>示例 2：</strong></p>\n\n<pre>\n<strong>输入：</strong>s = \"wordgoodgoodgoodbestword\", words = [\"word\",\"good\",\"best\",\"word\"]\n<code><strong>输出：</strong>[]</code>\n<strong>解释：</strong>因为<strong> </strong>words.length == 4 并且 words[i].length == 4，所以串联子串的长度必须为 16。\ns 中没有子串长度为 16 并且等于 words 的任何顺序排列的连接。\n所以我们返回一个空数组。\n</pre>\n\n<p><strong>示例 3：</strong></p>\n\n<pre>\n<strong>输入：</strong>s = \"barfoofoobarthefoobarman\", words = [\"bar\",\"foo\",\"the\"]\n<strong>输出：</strong>[6,9,12]\n<strong>解释：</strong>因为 words.length == 3 并且 words[i].length == 3，所以串联子串的长度必须为 9。\n子串 \"foobarthe\" 开始位置是 6。它是 words 中以 [\"foo\",\"bar\",\"the\"] 顺序排列的连接。\n子串 \"barthefoo\" 开始位置是 9。它是 words 中以 [\"bar\",\"the\",\"foo\"] 顺序排列的连接。\n子串 \"thefoobar\" 开始位置是 12。它是 words 中以 [\"the\",\"foo\",\"bar\"] 顺序排列的连接。</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= s.length &lt;= 10<sup>4</sup></code></li>\n\t<li><code>1 &lt;= words.length &lt;= 5000</code></li>\n\t<li><code>1 &lt;= words[i].length &lt;= 30</code></li>\n\t<li><code>words[i]</code>&nbsp;和&nbsp;<code>s</code> 由小写英文字母组成</li>\n</ul>\n",
            "isPaidOnly": false,
            "difficulty": "Hard",
            "likes": 1052,
            "dislikes": 0,
            "isLiked": null,
            "similarQuestions": "[{\"title\": \"Minimum Window Substring\", \"titleSlug\": \"minimum-window-substring\", \"difficulty\": \"Hard\", \"translatedTitle\": \"\\u6700\\u5c0f\\u8986\\u76d6\\u5b50\\u4e32\", \"isPaidOnly\": false}]",
            "contributors": [],
            "langToValidPlayground": "{\"cpp\": false, \"java\": true, \"python\": true, \"python3\": false, \"mysql\": false, \"mssql\": false, \"oraclesql\": false, \"c\": false, \"csharp\": false, \"javascript\": false, \"typescript\": false, \"bash\": false, \"php\": false, \"swift\": false, \"kotlin\": false, \"dart\": false, \"golang\": false, \"ruby\": false, \"scala\": false, \"html\": false, \"pythonml\": false, \"rust\": false, \"racket\": false, \"erlang\": false, \"elixir\": false, \"pythondata\": false, \"react\": false, \"vanillajs\": false, \"postgresql\": false}",
            "topicTags": [
                {
                    "name": "Hash Table",
                    "slug": "hash-table",
                    "translatedName": "哈希表",
                    "__typename": "TopicTagNode"
                },
                {
                    "name": "String",
                    "slug": "string",
                    "translatedName": "字符串",
                    "__typename": "TopicTagNode"
                },
                {
                    "name": "Sliding Window",
                    "slug": "sliding-window",
                    "translatedName": "滑动窗口",
                    "__typename": "TopicTagNode"
                }
            ],
            "companyTagStats": null,
            "codeSnippets": [
                {
                    "lang": "C++",
                    "langSlug": "cpp",
                    "code": "class Solution {\npublic:\n    vector<int> findSubstring(string s, vector<string>& words) {\n\n    }\n};",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Java",
                    "langSlug": "java",
                    "code": "class Solution {\n    public List<Integer> findSubstring(String s, String[] words) {\n\n    }\n}",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Python",
                    "langSlug": "python",
                    "code": "class Solution(object):\n    def findSubstring(self, s, words):\n        \"\"\"\n        :type s: str\n        :type words: List[str]\n        :rtype: List[int]\n        \"\"\"",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Python3",
                    "langSlug": "python3",
                    "code": "class Solution:\n    def findSubstring(self, s: str, words: List[str]) -> List[int]:",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "C",
                    "langSlug": "c",
                    "code": "/**\n * Note: The returned array must be malloced, assume caller calls free().\n */\nint* findSubstring(char* s, char** words, int wordsSize, int* returnSize) {\n    \n}",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "C#",
                    "langSlug": "csharp",
                    "code": "public class Solution {\n    public IList<int> FindSubstring(string s, string[] words) {\n\n    }\n}",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "JavaScript",
                    "langSlug": "javascript",
                    "code": "/**\n * @param {string} s\n * @param {string[]} words\n * @return {number[]}\n */\nvar findSubstring = function(s, words) {\n\n};",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "TypeScript",
                    "langSlug": "typescript",
                    "code": "function findSubstring(s: string, words: string[]): number[] {\n    \n};",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "PHP",
                    "langSlug": "php",
                    "code": "class Solution {\n\n    /**\n     * @param String $s\n     * @param String[] $words\n     * @return Integer[]\n     */\n    function findSubstring($s, $words) {\n\n    }\n}",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Swift",
                    "langSlug": "swift",
                    "code": "class Solution {\n    func findSubstring(_ s: String, _ words: [String]) -> [Int] {\n\n    }\n}",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Kotlin",
                    "langSlug": "kotlin",
                    "code": "class Solution {\n    fun findSubstring(s: String, words: Array<String>): List<Int> {\n\n    }\n}",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Dart",
                    "langSlug": "dart",
                    "code": "class Solution {\n  List<int> findSubstring(String s, List<String> words) {\n    \n  }\n}",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Go",
                    "langSlug": "golang",
                    "code": "func findSubstring(s string, words []string) []int {\n\n}",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Ruby",
                    "langSlug": "ruby",
                    "code": "# @param {String} s\n# @param {String[]} words\n# @return {Integer[]}\ndef find_substring(s, words)\n\nend",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Scala",
                    "langSlug": "scala",
                    "code": "object Solution {\n    def findSubstring(s: String, words: Array[String]): List[Int] = {\n\n    }\n}",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Rust",
                    "langSlug": "rust",
                    "code": "impl Solution {\n    pub fn find_substring(s: String, words: Vec<String>) -> Vec<i32> {\n\n    }\n}",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Racket",
                    "langSlug": "racket",
                    "code": "(define/contract (find-substring s words)\n  (-> string? (listof string?) (listof exact-integer?))\n  )",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Erlang",
                    "langSlug": "erlang",
                    "code": "-spec find_substring(S :: unicode:unicode_binary(), Words :: [unicode:unicode_binary()]) -> [integer()].\nfind_substring(S, Words) ->\n  .",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Elixir",
                    "langSlug": "elixir",
                    "code": "defmodule Solution do\n  @spec find_substring(s :: String.t, words :: [String.t]) :: [integer]\n  def find_substring(s, words) do\n    \n  end\nend",
                    "__typename": "CodeSnippetNode"
                }
            ],
            "stats": "{\"totalAccepted\": \"183.4K\", \"totalSubmission\": \"467.7K\", \"totalAcceptedRaw\": 183400, \"totalSubmissionRaw\": 467663, \"acRate\": \"39.2%\"}",
            "hints": [],
            "solution": null,
            "status": null,
            "sampleTestCase": "\"barfoothefoobarman\"\n[\"foo\",\"bar\"]",
            "metaData": "{\r\n  \"name\": \"findSubstring\",\r\n  \"params\": [\r\n    {\r\n      \"name\": \"s\",\r\n      \"type\": \"string\"\r\n    },\r\n    {\r\n      \"name\": \"words\",\r\n      \"type\": \"string[]\"\r\n    }\r\n  ],\r\n  \"return\": {\r\n    \"type\": \"list<integer>\"\r\n  }\r\n}",
            "judgerAvailable": true,
            "judgeType": "large",
            "mysqlSchemas": [],
            "enableRunCode": true,
            "envInfo": "{\"cpp\":[\"C++\",\"<p>\\u7248\\u672c\\uff1a<code>clang 11<\\/code> \\u91c7\\u7528\\u6700\\u65b0C++ 20\\u6807\\u51c6\\u3002<\\/p>\\r\\n\\r\\n<p>\\u7f16\\u8bd1\\u65f6\\uff0c\\u5c06\\u4f1a\\u91c7\\u7528<code>-O2<\\/code>\\u7ea7\\u4f18\\u5316\\u3002<a href=\\\"https:\\/\\/github.com\\/google\\/sanitizers\\/wiki\\/AddressSanitizer\\\" target=\\\"_blank\\\">AddressSanitizer<\\/a> \\u4e5f\\u88ab\\u5f00\\u542f\\u6765\\u68c0\\u6d4b<code>out-of-bounds<\\/code>\\u548c<code>use-after-free<\\/code>\\u9519\\u8bef\\u3002<\\/p>\\r\\n\\r\\n<p>\\u4e3a\\u4e86\\u4f7f\\u7528\\u65b9\\u4fbf\\uff0c\\u5927\\u90e8\\u5206\\u6807\\u51c6\\u5e93\\u7684\\u5934\\u6587\\u4ef6\\u5df2\\u7ecf\\u88ab\\u81ea\\u52a8\\u5bfc\\u5165\\u3002<\\/p>\"],\"java\":[\"Java\",\"<p>\\u7248\\u672c\\uff1a<code>OpenJDK 17<\\/code>\\u3002\\u53ef\\u4ee5\\u4f7f\\u7528Java 8\\u7684\\u7279\\u6027\\u4f8b\\u5982\\uff0clambda expressions \\u548c stream API\\u3002<\\/p>\\r\\n\\r\\n<p>\\u4e3a\\u4e86\\u65b9\\u4fbf\\u8d77\\u89c1\\uff0c\\u5927\\u90e8\\u5206\\u6807\\u51c6\\u5e93\\u7684\\u5934\\u6587\\u4ef6\\u5df2\\u88ab\\u5bfc\\u5165\\u3002<\\/p>\\r\\n\\r\\n<p>\\u5305\\u542b Pair \\u7c7b: https:\\/\\/docs.oracle.com\\/javase\\/8\\/javafx\\/api\\/javafx\\/util\\/Pair.html <\\/p>\"],\"python\":[\"Python\",\"<p>\\u7248\\u672c\\uff1a <code>Python 2.7.12<\\/code><\\/p>\\r\\n\\r\\n<p>\\u4e3a\\u4e86\\u65b9\\u4fbf\\u8d77\\u89c1\\uff0c\\u5927\\u90e8\\u5206\\u5e38\\u7528\\u5e93\\u5df2\\u7ecf\\u88ab\\u81ea\\u52a8 \\u5bfc\\u5165\\uff0c\\u5982\\uff1a<a href=\\\"https:\\/\\/docs.python.org\\/2\\/library\\/array.html\\\" target=\\\"_blank\\\">array<\\/a>, <a href=\\\"https:\\/\\/docs.python.org\\/2\\/library\\/bisect.html\\\" target=\\\"_blank\\\">bisect<\\/a>, <a href=\\\"https:\\/\\/docs.python.org\\/2\\/library\\/collections.html\\\" target=\\\"_blank\\\">collections<\\/a>\\u3002\\u5982\\u679c\\u60a8\\u9700\\u8981\\u4f7f\\u7528\\u5176\\u4ed6\\u5e93\\u51fd\\u6570\\uff0c\\u8bf7\\u81ea\\u884c\\u5bfc\\u5165\\u3002<\\/p>\\r\\n\\r\\n<p>\\u6ce8\\u610f Python 2.7 <a href=\\\"https:\\/\\/www.python.org\\/dev\\/peps\\/pep-0373\\/\\\" target=\\\"_blank\\\">\\u5c06\\u57282020\\u5e74\\u540e\\u4e0d\\u518d\\u7ef4\\u62a4<\\/a>\\u3002 \\u5982\\u60f3\\u4f7f\\u7528\\u6700\\u65b0\\u7248\\u7684Python\\uff0c\\u8bf7\\u9009\\u62e9Python 3\\u3002<\\/p>\"],\"c\":[\"C\",\"<p>\\u7248\\u672c\\uff1a<code>GCC 8.2<\\/code>\\uff0c\\u91c7\\u7528GNU11\\u6807\\u51c6\\u3002<\\/p>\\r\\n\\r\\n<p>\\u7f16\\u8bd1\\u65f6\\uff0c\\u5c06\\u4f1a\\u91c7\\u7528<code>-O1<\\/code>\\u7ea7\\u4f18\\u5316\\u3002 <a href=\\\"https:\\/\\/github.com\\/google\\/sanitizers\\/wiki\\/AddressSanitizer\\\" target=\\\"_blank\\\">AddressSanitizer<\\/a>\\u4e5f\\u88ab\\u5f00\\u542f\\u6765\\u68c0\\u6d4b<code>out-of-bounds<\\/code>\\u548c<code>use-after-free<\\/code>\\u9519\\u8bef\\u3002<\\/p>\\r\\n\\r\\n<p>\\u4e3a\\u4e86\\u4f7f\\u7528\\u65b9\\u4fbf\\uff0c\\u5927\\u90e8\\u5206\\u6807\\u51c6\\u5e93\\u7684\\u5934\\u6587\\u4ef6\\u5df2\\u7ecf\\u88ab\\u81ea\\u52a8\\u5bfc\\u5165\\u3002<\\/p>\\r\\n\\r\\n<p>\\u5982\\u60f3\\u4f7f\\u7528\\u54c8\\u5e0c\\u8868\\u8fd0\\u7b97, \\u60a8\\u53ef\\u4ee5\\u4f7f\\u7528 <a href=\\\"https:\\/\\/troydhanson.github.io\\/uthash\\/\\\" target=\\\"_blank\\\">uthash<\\/a>\\u3002 \\\"uthash.h\\\"\\u5df2\\u7ecf\\u9ed8\\u8ba4\\u88ab\\u5bfc\\u5165\\u3002\\u8bf7\\u770b\\u5982\\u4e0b\\u793a\\u4f8b:<\\/p>\\r\\n\\r\\n<p><b>1. \\u5f80\\u54c8\\u5e0c\\u8868\\u4e2d\\u6dfb\\u52a0\\u4e00\\u4e2a\\u5bf9\\u8c61\\uff1a<\\/b>\\r\\n<pre>\\r\\nstruct hash_entry {\\r\\n    int id;            \\/* we'll use this field as the key *\\/\\r\\n    char name[10];\\r\\n    UT_hash_handle hh; \\/* makes this structure hashable *\\/\\r\\n};\\r\\n\\r\\nstruct hash_entry *users = NULL;\\r\\n\\r\\nvoid add_user(struct hash_entry *s) {\\r\\n    HASH_ADD_INT(users, id, s);\\r\\n}\\r\\n<\\/pre>\\r\\n<\\/p>\\r\\n\\r\\n<p><b>2. \\u5728\\u54c8\\u5e0c\\u8868\\u4e2d\\u67e5\\u627e\\u4e00\\u4e2a\\u5bf9\\u8c61\\uff1a<\\/b>\\r\\n<pre>\\r\\nstruct hash_entry *find_user(int user_id) {\\r\\n    struct hash_entry *s;\\r\\n    HASH_FIND_INT(users, &user_id, s);\\r\\n    re
            "book": null,
            "isSubscribed": false,
            "isDailyQuestion": false,
            "dailyRecordStatus": null,
            "editorType": "CKEDITOR",
            "ugcQuestionId": null,
            "style": "LEETCODE",
            "exampleTestcases": "\"barfoothefoobarman\"\n[\"foo\",\"bar\"]\n\"wordgoodgoodgoodbestword\"\n[\"word\",\"good\",\"best\",\"word\"]\n\"barfoofoobarthefoobarman\"\n[\"bar\",\"foo\",\"the\"]",
            "__typename": "QuestionNode"
        }
    }
}